Dramatic Growth of Open Access December 31, 2017

Highlights

As usual the open access movement has much to celebrate as 2017 draws to a close, and the whole world has much to look forward to from open access in 2018. As of today there are 4.6 million articles in PubMedCentral, thanks in large measure to constantly increasing participation by scholarly journals; sometime in 2018 this is likely to exceed 5 million. DOAJ added a net 1,272 journals (3.5 / day) and showed even stronger growth in article searchability; a DOAJ milestone of 3 million searchable articles in likely to come in 2018. The Directory of Open Access Books nearly doubled in size and now has more than 10,000 books from 247 publishers. Bielefeld Academic Search Engine, the best surrogate for overall growth, continues to amaze with over 120 million documents, growth of 17.3 million in 2017, a 17% growth rate on a very substantial base; a 20% growth in content providers is an indication of the overall growth of the repository movement. arXiv’s growth rate was 10% while newcomer arXiv clones socRxiv grew by 187% and bioRxiv by 151%. REPEC grew by 13%, SCOAP3 by 32%. Internet Archive grew by 31 billion web pages, 4 million texts, 2.4 million images, 800,000 movies, and 600,000 audio recordings. Following are selected details indicating the content numbers at the end of 2017, 2017 growth by number, percentage, and where warranted, by day.

Full data can be downloaded from here: https://dataverse.scholarsportal.info/dataverse/dgoa

Details (selected)

Totals are from December 31, 2017. Annual growth: Dec. 31, 2017 – Dec. 31, 2017

Free journals

Directory of Open Access Journals

10,727 journals

  • 2017 growth: 1,272 journals (3.5 / day), growth rate 13%

7,809 journals searchable at article level

  • 2017 growth:  1,175 (3.2 / day), growth rate 18%

2,791,701 articles searchable at article level

  • 2017 growth: 391,443 (1,072 / day), growth rate 16%

Milestone to watch for in 2018: 3 million articles searchable at article level

Electronic Journals Library 

59,240 journals that can be read free of charge (2017 growth: 3,678 (10 / day), 7% growth)

Free books

OECD ilibrary

11,690 e-book titles (2017 growth 640 (2 / day), growth rate 6%

Directory of Open Access Books

 10,315 academic peer-reviewed books, 247 publishers

  • 2017 growth: 4,713 (13 / day), growth rate 84%, increase of 80 publishers

See also Internet Archive below

    Repositories
    Bielefeld Academic Search Engine

    120,383,423 documents

    • 2017 growth: 17.3 million documents (47,000 / day), growth rate 17%

    6,038 content providers

    • 2017 growth: 1,015 (3 / day), growth rate 20%

    OpenDOAR

    3,464 repositories — 2017 growth 179, (.5 / day), growth rate 5%

    Registry of Open Access Repositories

    4,597 repositories – 2017 growth 232, 1 / day), growth rate 5%

    PubMedCentral

    4.6 million items – 2017 growth 500,000, (1,370 / day), growth rate 12%

    2,446 journals actively participating in PMC – 2017 growth 120, growth rate 5%

    1,832 journals in PMC with immediate free access – 2017 growth 112, growth rate 7%

    1,478 journals in PMC with all articles open access – 2017 growth 52, growth rate 4%

    664 journals in PMC with some articles open access – 2017 growth 95, growth rate 17%

    2,093 full participation journals (deposit ALL articles in PMC) – 2017 growth 120, growth rate 6%

    329 NIH portfolio journals (deposit NIH funded article in PMC) – 2017 growth 5, growth rate 2%

    4,494 selective deposit (deposit some articles in PMC) – 2017 growth 421 (1 / day), growth rate 10%

    33% of articles keyword “cancer” freefulltext within 1 year of publication (41% at 2 years, 45% at 5 years, 26% with no date limiter)

    Milestone to watch for in 2018: 5 million items

    arXiv

    1,342,725 items – 2017 growth 123,501 (338 / day), growth rate 10%

    SocArXiv

    1,814 preprints – 2017 growth 1,183 (3 / day), growth rate 187%

    bioRxiv

    18,822 article – 2017 growth 11,322 (31 / day), growth rate 151%

    RePEC

    2,279,139 downloadable items – 2017 growth 257,605 (706 / day), growth rate 13%

    Internet Archive

    310 billion webpages – 2017 growth 31 billion webpages (85,000 / day), growth rate 11%

    3.8 million video (movies) – 2017 growth 800,000 (2,192 / day), growth rate 27%

    3.8 million audio recordings – 2017 growth 600,000 (1,644 / day), growth rate 19%

    15,000,000 texts – 2017 growth: 4 million (11,000 / day), growth rate 36%

    3.7 million images – 2017 growth: 2.4 million (6,575 / day), growth rate 185%

    SCOAP3

    18,042 articles – 2017 growth: 4,410 (12 / day), growth rate 32%

     This post is part of the Dramatic Growth of Open Access series.

    Dramatic Growth of Open Access December 31, 2017

    Highlights

    As usual the open access movement has much to celebrate as 2017 draws to a close, and the whole world has much to look forward to from open access in 2018. As of today there are 4.6 million articles in PubMedCentral, thanks in large measure to constantly increasing participation by scholarly journals; sometime in 2018 this is likely to exceed 5 million. DOAJ added a net 1,272 journals (3.5 / day) and showed even stronger growth in article searchability; a DOAJ milestone of 3 million searchable articles in likely to come in 2018. The Directory of Open Access Books nearly doubled in size and now has more than 10,000 books from 247 publishers. Bielefeld Academic Search Engine, the best surrogate for overall growth, continues to amaze with over 120 million documents, growth of 17.3 million in 2017, a 17% growth rate on a very substantial base; a 20% growth in content providers is an indication of the overall growth of the repository movement. arXiv’s growth rate was 10% while newcomer arXiv clones socRxiv grew by 187% and bioRxiv by 151%. REPEC grew by 13%, SCOAP3 by 32%. Internet Archive grew by 31 billion web pages, 4 million texts, 2.4 million images, 800,000 movies, and 600,000 audio recordings. Following are selected details indicating the content numbers at the end of 2017, 2017 growth by number, percentage, and where warranted, by day.

    Full data can be downloaded from here: https://dataverse.scholarsportal.info/dataverse/dgoa

    Details (selected)

    Totals are from December 31, 2017. Annual growth: Dec. 31, 2017 – Dec. 31, 2017

    Free journals

    Directory of Open Access Journals

    10,727 journals

    • 2017 growth: 1,272 journals (3.5 / day), growth rate 13%

    7,809 journals searchable at article level

    • 2017 growth:  1,175 (3.2 / day), growth rate 18%

    2,791,701 articles searchable at article level

    • 2017 growth: 391,443 (1,072 / day), growth rate 16%

    Milestone to watch for in 2018: 3 million articles searchable at article level

    Electronic Journals Library 

    59,240 journals that can be read free of charge (2017 growth: 3,678 (10 / day), 7% growth)

    Free books

    OECD ilibrary

    11,690 e-book titles (2017 growth 640 (2 / day), growth rate 6%

    Directory of Open Access Books

     10,315 academic peer-reviewed books, 247 publishers

    • 2017 growth: 4,713 (13 / day), growth rate 84%, increase of 80 publishers

    See also Internet Archive below

      Repositories
      Bielefeld Academic Search Engine

      120,383,423 documents

      • 2017 growth: 17.3 million documents (47,000 / day), growth rate 17%

      6,038 content providers

      • 2017 growth: 1,015 (3 / day), growth rate 20%

      OpenDOAR

      3,464 repositories — 2017 growth 179, (.5 / day), growth rate 5%

      Registry of Open Access Repositories

      4,597 repositories – 2017 growth 232, 1 / day), growth rate 5%

      PubMedCentral

      4.6 million items – 2017 growth 500,000, (1,370 / day), growth rate 12%

      2,446 journals actively participating in PMC – 2017 growth 120, growth rate 5%

      1,832 journals in PMC with immediate free access – 2017 growth 112, growth rate 7%

      1,478 journals in PMC with all articles open access – 2017 growth 52, growth rate 4%

      664 journals in PMC with some articles open access – 2017 growth 95, growth rate 17%

      2,093 full participation journals (deposit ALL articles in PMC) – 2017 growth 120, growth rate 6%

      329 NIH portfolio journals (deposit NIH funded article in PMC) – 2017 growth 5, growth rate 2%

      4,494 selective deposit (deposit some articles in PMC) – 2017 growth 421 (1 / day), growth rate 10%

      33% of articles keyword “cancer” freefulltext within 1 year of publication (41% at 2 years, 45% at 5 years, 26% with no date limiter)

      Milestone to watch for in 2018: 5 million items

      arXiv

      1,342,725 items – 2017 growth 123,501 (338 / day), growth rate 10%

      SocArXiv

      1,814 preprints – 2017 growth 1,183 (3 / day), growth rate 187%

      bioRxiv

      18,822 article – 2017 growth 11,322 (31 / day), growth rate 151%

      RePEC

      2,279,139 downloadable items – 2017 growth 257,605 (706 / day), growth rate 13%

      Internet Archive

      310 billion webpages – 2017 growth 31 billion webpages (85,000 / day), growth rate 11%

      3.8 million video (movies) – 2017 growth 800,000 (2,192 / day), growth rate 27%

      3.8 million audio recordings – 2017 growth 600,000 (1,644 / day), growth rate 19%

      15,000,000 texts – 2017 growth: 4 million (11,000 / day), growth rate 36%

      3.7 million images – 2017 growth: 2.4 million (6,575 / day), growth rate 185%

      SCOAP3

      18,042 articles – 2017 growth: 4,410 (12 / day), growth rate 32%

       This post is part of the Dramatic Growth of Open Access series.

      Dramatic Growth of Open Access June 30, 2017


      Correction: DOAJ will soon surpass 2.5 million articles, not a quarter of a billion as originally reported. 

      Highlights

      Open access continues to demonstrate robust growth on a global scale, in terms of works that are made available open access, ongoing growth in infrastructure (new repositories, journals, book publishers), strong growth for new initiatives such as SocArxiv, BioRxiv, the Directory of Open Access Books, SCOAP3, as well as ongoing strong growth in established services such as BASE, PubMed / PubMedCentral, Internet Archive (check out the new Collections including a Trump archive and FactChecker), DOAJ (almost 2.5 million articles searchable at the article level), RePEC and arXiv. Ongoing growth in infrastructure and OA policy give every reason to expect this growth to be ongoing.

      Open Data Version

      Morrison, Heather, 2014, “Dramatic Growth of Open Access”, hdl:10864/10660, Scholars Portal Dataverse, V17,

      Details

      This edition of the Dramatic Growth of Open Access highlights two of the new kids on the OA block – SocArxiv and BioRxiv, modeled on early OA success story arXiv, topping the quarterly growth by percentage with percentage growth of about 30% each! SocArxiv now has 1,200 documents and BioRxiv 12,800.

      Similarly, a relative newcomer, the Directory of Open Access Books, is in both first and second place for annual growth by percentage with 68% growth for OA books and 40% of OA publishers in the past year for a total of 8,172 open access books and 217 OA book publishers.

      SCOAP3, a global initiative to transform high-energy physics publishing to open access, is showing remarkable growth, 39% in the last year and 8% in the last quarter for a total of 15,790 articles funded.

      To celebrate the growth of all OA services two pictures are presented of the growth of the largest collective OA search engine that I am aware of. Together, the 5,000 content providers who contribute metadata to the Bielefeld Academic Search Engine (BASE) have made available over 112 million documents. Around 60% of these are open access, so the number of OA documents in the world can be said to be somewhere about 67 million. BASE also posts their own online statistics table and chart – check it out here.

      I wish I had the time to applaud and celebrate the growth of each and every OA service, but with 5,000 services contributing to BASE (and others that don’t), if I worked on this 365 days a year I would have to cover 14 initiatives every day. So please feel free to help out by applauding and celebrating the services most relevant to you – the journals in your discipline, your institutional repository, the services you find most helpful to search.

      Below you will find tables listing the top services by quarterly (5% or more) and annual growth (10% or more). For the full numbers download the open data version (link above). As usual Internet Archive is well represented, with 5 items in the list of the top 13 services by quarterly growth and the top 18 services by annual growth. Internet Archive also offers 2 intriguing new services under Collections – a Trump Archive with over a thousand videos and a Fact Checker collection with over 400 items, available at https://archive.org/details/tvhttps://archive.org/details/tv

      Of course PubMed and PubMedCentral are up there in the growth charts, in this quarter for total number of items (5% quarterly growth) as well as what looks (to me) like hesitant new steps by a substantial number of journals, with a 26% increase in the number of contributing journals that provide some OA and a 14% increase in the number of journals that provide OA to selected articles. The number of journals providing immediate free access and/or all articles open access continues to increase, so this is clearly growth, not backsliding.

      DOAJ is included in the top growth services with 14% growth in the number of articles searchable at article level. DOAJ now has over 2.49 million articles searchable at the article level and should soon surpass 2.5 million articles.

      arXiv and RePEC are on the list for strong growth in articles, and ROARMAP for growth in OA policies.
       


      -->
      Quarterly growth (percentage) June 2017
      32% SocArxiv preprints 1,200
      29% BioRxiv all articles 12,280
      18% # of academic peer-reviewed books (DOAB) 8,172
      18% # publishers (DOAB) 217
      8% SCOAP3 articles 15,790
      8% Internet Archive Software 178,635
      7% Video (movies)  (Internet Archive) 3,437,542
      7% Texts  (Internet Archive) 12,821,051
      5% Images (Internet Archive) 1,476,743
      5% # of content providers (BASE) 5,621
      5% Audio (recordings)  (Internet Archive) 3,477,033
      5% Webpages (Internet Archive) (in billions) 298
      5% PubMedCentral (number of items) 4,400,000

       
      -->
      Annual growth (percentage) 06/30/17
      68% # of academic peer-reviewed books (DOAB) 8,172
      40% # publishers (DOAB) 217
      39% SCOAP3 number of archives 15,790
      34% Video (movies)  (Internet Archive) 3,437,542
      33% Internet Archive: Software 178,635
      29% # of content providers (BASE) 5,621
      27% Texts  (Internet Archive) 12,821,051
      26% PMC journals some OA 609
      25% Internet Archive: Images 1,476,743
      20% # of documents (BASE) 112,458,360
      17% Audio (recordings)  (Internet Archive) 3,477,033
      17% RePEc journal articles 1,491,037
      14% # of articles searchable at article level (DOAJ) 2,493,835
      14% PMC select deposit journals 4,296
      13% RePEC downloadable 2,143,844
      13% Total Policies (ROARMAP) 872
      13% PMC # items 4,400,000
      10% arXiv  http://arxiv.org/ 1,278,739

       This post is part of the Dramatic Growth of Open Access Series Feel free to copy and share - with love.  Note that images are compressed by the software to reduce file size, and they are also quickly outdated. You are welcome to use the images, but my recommendation is to download the data and make your own graphics. It's easier than you think with tools like modern spreadsheet software.
       

      Dramatic Growth of Open Access June 30, 2017


      Correction: DOAJ will soon surpass 2.5 million articles, not a quarter of a billion as originally reported. 

      Highlights

      Open access continues to demonstrate robust growth on a global scale, in terms of works that are made available open access, ongoing growth in infrastructure (new repositories, journals, book publishers), strong growth for new initiatives such as SocArxiv, BioRxiv, the Directory of Open Access Books, SCOAP3, as well as ongoing strong growth in established services such as BASE, PubMed / PubMedCentral, Internet Archive (check out the new Collections including a Trump archive and FactChecker), DOAJ (almost 2.5 million articles searchable at the article level), RePEC and arXiv. Ongoing growth in infrastructure and OA policy give every reason to expect this growth to be ongoing.

      Open Data Version

      Morrison, Heather, 2014, “Dramatic Growth of Open Access”, hdl:10864/10660, Scholars Portal Dataverse, V17,

      Details

      This edition of the Dramatic Growth of Open Access highlights two of the new kids on the OA block – SocArxiv and BioRxiv, modeled on early OA success story arXiv, topping the quarterly growth by percentage with percentage growth of about 30% each! SocArxiv now has 1,200 documents and BioRxiv 12,800.

      Similarly, a relative newcomer, the Directory of Open Access Books, is in both first and second place for annual growth by percentage with 68% growth for OA books and 40% of OA publishers in the past year for a total of 8,172 open access books and 217 OA book publishers.

      SCOAP3, a global initiative to transform high-energy physics publishing to open access, is showing remarkable growth, 39% in the last year and 8% in the last quarter for a total of 15,790 articles funded.

      To celebrate the growth of all OA services two pictures are presented of the growth of the largest collective OA search engine that I am aware of. Together, the 5,000 content providers who contribute metadata to the Bielefeld Academic Search Engine (BASE) have made available over 112 million documents. Around 60% of these are open access, so the number of OA documents in the world can be said to be somewhere about 67 million. BASE also posts their own online statistics table and chart – check it out here.

      I wish I had the time to applaud and celebrate the growth of each and every OA service, but with 5,000 services contributing to BASE (and others that don’t), if I worked on this 365 days a year I would have to cover 14 initiatives every day. So please feel free to help out by applauding and celebrating the services most relevant to you – the journals in your discipline, your institutional repository, the services you find most helpful to search.

      Below you will find tables listing the top services by quarterly (5% or more) and annual growth (10% or more). For the full numbers download the open data version (link above). As usual Internet Archive is well represented, with 5 items in the list of the top 13 services by quarterly growth and the top 18 services by annual growth. Internet Archive also offers 2 intriguing new services under Collections – a Trump Archive with over a thousand videos and a Fact Checker collection with over 400 items, available at https://archive.org/details/tvhttps://archive.org/details/tv

      Of course PubMed and PubMedCentral are up there in the growth charts, in this quarter for total number of items (5% quarterly growth) as well as what looks (to me) like hesitant new steps by a substantial number of journals, with a 26% increase in the number of contributing journals that provide some OA and a 14% increase in the number of journals that provide OA to selected articles. The number of journals providing immediate free access and/or all articles open access continues to increase, so this is clearly growth, not backsliding.

      DOAJ is included in the top growth services with 14% growth in the number of articles searchable at article level. DOAJ now has over 2.49 million articles searchable at the article level and should soon surpass 2.5 million articles.

      arXiv and RePEC are on the list for strong growth in articles, and ROARMAP for growth in OA policies.
       


      -->
      Quarterly growth (percentage) June 2017
      32% SocArxiv preprints 1,200
      29% BioRxiv all articles 12,280
      18% # of academic peer-reviewed books (DOAB) 8,172
      18% # publishers (DOAB) 217
      8% SCOAP3 articles 15,790
      8% Internet Archive Software 178,635
      7% Video (movies)  (Internet Archive) 3,437,542
      7% Texts  (Internet Archive) 12,821,051
      5% Images (Internet Archive) 1,476,743
      5% # of content providers (BASE) 5,621
      5% Audio (recordings)  (Internet Archive) 3,477,033
      5% Webpages (Internet Archive) (in billions) 298
      5% PubMedCentral (number of items) 4,400,000

       
      -->
      Annual growth (percentage) 06/30/17
      68% # of academic peer-reviewed books (DOAB) 8,172
      40% # publishers (DOAB) 217
      39% SCOAP3 number of archives 15,790
      34% Video (movies)  (Internet Archive) 3,437,542
      33% Internet Archive: Software 178,635
      29% # of content providers (BASE) 5,621
      27% Texts  (Internet Archive) 12,821,051
      26% PMC journals some OA 609
      25% Internet Archive: Images 1,476,743
      20% # of documents (BASE) 112,458,360
      17% Audio (recordings)  (Internet Archive) 3,477,033
      17% RePEc journal articles 1,491,037
      14% # of articles searchable at article level (DOAJ) 2,493,835
      14% PMC select deposit journals 4,296
      13% RePEC downloadable 2,143,844
      13% Total Policies (ROARMAP) 872
      13% PMC # items 4,400,000
      10% arXiv  http://arxiv.org/ 1,278,739

       This post is part of the Dramatic Growth of Open Access Series Feel free to copy and share - with love.  Note that images are compressed by the software to reduce file size, and they are also quickly outdated. You are welcome to use the images, but my recommendation is to download the data and make your own graphics. It's easier than you think with tools like modern spreadsheet software.
       

      Dramatic Growth of Open Access December 31, 2016

      Download data here

       Highlights

      Arguably the best indicator of the global collaborative growth of open access, whether through archives or publications, is the ongoing impressive growth of what we can access through the Bielefeld Academic Search Engine, which surpassed two major milestones in 2016: over 100 million documents (about 60% open access) and 5,000 content providers. The growth rates (22% for documents, 27% for content providers) are particularly impressive given the high pre-existing content rate. This is amazing success not just for BASE, but for all of us. If you’ve published a thesis through an institutional repository that allows for metadata harvesting, or published an article in a journal that contributes article-level data for metadata harvesting, your contribution is reflected here. This is a meta-level indicator of our global success.

      I’ve added a new metric for medical open access, a keyword search of PubMed for “cancer” for articles with no date limit, last 5 years, last 2 years, and last year, further limited to free fulltext to determine the percentage of items for which fulltext is available. This ranges from 26% overall (no date limit), to 40 – 44% for items published in the last 2 – 5 years, to 32% for articles published in the last year.

      Also added this quarter: OECD iLibrary – with more than 11,000 free books, this one publisher’s OA collection is nearly double the size of the 167 publishers included in the impressivley growing Directory of Open Access Books! arXiv, in addition to an over 10% growth rate last year, inspired the recent development of two similar services, socArXiv and bioRxiv, newly added to facilitate future growth tracking. The DOAJ get-tough inclusion policy and March 2016 major weeding means the DOAJ count for titles, countries and journals searchable at the article level are all down from last year, while articles searchable at the article level through DOAJ continued to show robust growth of 13%. DOAJ’s quarterly growth is back to an impressive rate of just under 3 titles per day. RePEC surpassed a milestone of 2 million downloadable items this year, while Internet Archive surpassed 3 milestones: there are now more than 3 million video and audio recordings, and more than 11 million texts (the number of IA web pages archived is way down, by the billions – such a difference it strikes me as likely due to a glitch in counting, whether before or after). Recently Open Journal Systems announced that OJS is now used by more than 10,000 active journals which <>.

      Kudos and thanks to everyone in the open access movement – every researcher, author, editor, publisher, archive manager, librarian, policy-maker, and activist who is making open access happen. What of 2017? My advice: let’s remember the beautiful vision of the potential unprecedented public good of open access – forged not at a time of peace and certainty, but rather within months of the trauma of 9/11 – repeated below – and keep on making it happen.

      BOAI vision:

      An old tradition and a new technology have converged to make possible an unprecedented public good. The old tradition is the willingness of scientists and scholars to publish the fruits of their research in scholarly journals without payment, for the sake of inquiry and knowledge. The new technology is the internet. The public good they make possible is the world-wide electronic distribution of the peer-reviewed journal literature and completely free and unrestricted access to it by all scientists, scholars, teachers, students, and other curious minds. Removing access barriers to this literature will accelerate research, enrich education, share the learning of the rich with the poor and the poor with the rich, make this literature as useful as it can be, and lay the foundation for uniting humanity in a common intellectual conversation and quest for knowledge.

      Selected numbers and growth by service:

      Directory of Open Access Journals 

      Highlights: in March 2016 DOAJ removed more than 3,000 journals, reflecting a new get-tough inclusion policy. All journals that had not gone through DOAJ’s new application process were removed. As a result, in spite of robust quarter since the removal process, most of DOAJ’s key data are lower at the end of 2016 than at 2015, with the exception of number of articles searchable through DOAJ which grew by 13%.

      • 9,455 journals (down from 10,963 in 2015, a 14% decrease. Note that this quarter DOAJ added 246 journals for a current growth rate of close to 3 titles per day).
      • 6,634 journals searchable at article level (down from 6,780 in 2015, a 2% decrease. Note that this quarter DOAJ increased the number of searchable journals by 217).
      • 2,400,258 articles (up 13% from 2,123,402 at the end of 2015, very impressive given the journal weeding process)
      • 128 countries (down from 136 at the end of 2016)

      Electronic Journals Library

      •  55,562 journals that can be read free-of-charge (up from 51,983 at the end of 2017, a 7% growth rate)

      OECD iLibrary  * (selected data points) (just added, no growth figures)

      • 11,050 e-book titles
      • 5,130 multilingual summaries
      • 5,200 working papers
      • 5 billion data points across 42 databases

        Directory of Open Access Books

        • 5,602 books (up from 3,789 at the end of 2015, a 48% growth rate)
        • 167 publishers (up from 134 at the end of 2014, 33 publishers added, a 25% growth rate)

        OpenDOAR 

        3,000 repository milestone!!!

        • 3,285 repositories (up from 2,991 at the end of 2015, a 10% growth rate)

        Registry of Open Access Repositories

        •  4,365 repositories (up from 4,147 at the end of 2015, a 5% growth rate)

        Bielefeld Academic Search Engine 

        100 million document milestone!!!
        5,000 content providers milestone!!!

        • 103,090,961 documents (up from 84.25 million at the end of 2015, a 22% growth rate)
        • 5,023 content sources (up from 3,965 at the end of 2015, a 27% growth rate)

        PubMedCentral

        4 million article milestone!!!

        •  4.1 million articles (up from 3.7 million at the end of 2015, an 11% growth rate)
        • 2,326 journals actively participating in PubMedCentral (up from 2,021 at the end of 2015, a 10% growth rate)
        • 1,720 journals with immediate free access (up from 1,553 at the end of 2015, an 11% growth rate)
        • 1,426 journals with all articles open access (up from 1,331 at the end of 2015, a 7% growth rate)
        • 569 journals with some articles open access (up from 423 at the end of 2015, a 35% growth rate)

          arXiv

          • 1,219,224 preprints (up from 1,105,906 at the end of 2015, a 10% growth rate)

          SocArXiv Preprints (launched December 7, 2016, inspired by arXiv)  **

          • 631 searchable preprints

          bioRxiv
          (in beta December 31, 2016, inspired by arXiv) ***

          • 7,500 articles (based on “all articles” search, 750 pages X 10 articles / page)

          RePEC

          2 million downloadable items milestone!!!

          • 2,021,534 downloadable items (up from 1,942,541 at the end of 2015, a 13% growth rate)

          ROARMAP

          • 803 total open access mandate policies (up from 762 at the end of 2015, a 5% growth rate)

          Internet Archive

          3 million milestones for video and audiorecordings!!!
          10 million milestone for texts (now 11 million)!!!

          • 11 million texts (up from 8.8 million at the end of 2015, a 26% growth rate

          Notes

           * OECD iLibrary statement on free-to-read (from About page):

          All book and journal content is available to all users to read online by clicking the READ icon. Read editions are optimised for browser-enabled mobile devices and can be read online wherever there is an internet connection – desktop computer, tablets or smart phones. They are also shareable and embeddable.
          The site also features content for all users to access and download such as the OECD Factbook, OECD Working Papers, Indicators, and more.
          Subscribers benefit from full access to all content in all available formats.

          ** about SocArXiv (from the Dec. 7, 2016 launch announcement):

          SocArXiv, the open access, open source archive of social science, is officially launching in beta version today. Created in partnership with the Center for Open Science, SocArXiv provides a free, noncommercial service for rapid sharing of academic papers; it is built on the Open Science Framework, a platform for researchers to upload data and code as well as research results

          *** about bioRxiv (from about page):

          bioRxiv (pronounced “bio-archive”) is a free online archive and distribution service for unpublished preprints in the life sciences. It is operated by Cold Spring Harbor Laboratory, a not-for-profit research and educational institution. By posting preprints on bioRxiv, authors are able to make their findings immediately available to the scientific community and receive feedback on draft manuscripts before they are submitted to journals.

          This post is part of the Dramatic Growth of Open Access series.

            Dramatic Growth of Open Access December 31, 2016

            Download data here

             Highlights

            Arguably the best indicator of the global collaborative growth of open access, whether through archives or publications, is the ongoing impressive growth of what we can access through the Bielefeld Academic Search Engine, which surpassed two major milestones in 2016: over 100 million documents (about 60% open access) and 5,000 content providers. The growth rates (22% for documents, 27% for content providers) are particularly impressive given the high pre-existing content rate. This is amazing success not just for BASE, but for all of us. If you’ve published a thesis through an institutional repository that allows for metadata harvesting, or published an article in a journal that contributes article-level data for metadata harvesting, your contribution is reflected here. This is a meta-level indicator of our global success.

            I’ve added a new metric for medical open access, a keyword search of PubMed for “cancer” for articles with no date limit, last 5 years, last 2 years, and last year, further limited to free fulltext to determine the percentage of items for which fulltext is available. This ranges from 26% overall (no date limit), to 40 – 44% for items published in the last 2 – 5 years, to 32% for articles published in the last year.

            Also added this quarter: OECD iLibrary – with more than 11,000 free books, this one publisher’s OA collection is nearly double the size of the 167 publishers included in the impressivley growing Directory of Open Access Books! arXiv, in addition to an over 10% growth rate last year, inspired the recent development of two similar services, socArXiv and bioRxiv, newly added to facilitate future growth tracking. The DOAJ get-tough inclusion policy and March 2016 major weeding means the DOAJ count for titles, countries and journals searchable at the article level are all down from last year, while articles searchable at the article level through DOAJ continued to show robust growth of 13%. DOAJ’s quarterly growth is back to an impressive rate of just under 3 titles per day. RePEC surpassed a milestone of 2 million downloadable items this year, while Internet Archive surpassed 3 milestones: there are now more than 3 million video and audio recordings, and more than 11 million texts (the number of IA web pages archived is way down, by the billions – such a difference it strikes me as likely due to a glitch in counting, whether before or after). Recently Open Journal Systems announced that OJS is now used by more than 10,000 active journals which <>.

            Kudos and thanks to everyone in the open access movement – every researcher, author, editor, publisher, archive manager, librarian, policy-maker, and activist who is making open access happen. What of 2017? My advice: let’s remember the beautiful vision of the potential unprecedented public good of open access – forged not at a time of peace and certainty, but rather within months of the trauma of 9/11 – repeated below – and keep on making it happen.

            BOAI vision:

            An old tradition and a new technology have converged to make possible an unprecedented public good. The old tradition is the willingness of scientists and scholars to publish the fruits of their research in scholarly journals without payment, for the sake of inquiry and knowledge. The new technology is the internet. The public good they make possible is the world-wide electronic distribution of the peer-reviewed journal literature and completely free and unrestricted access to it by all scientists, scholars, teachers, students, and other curious minds. Removing access barriers to this literature will accelerate research, enrich education, share the learning of the rich with the poor and the poor with the rich, make this literature as useful as it can be, and lay the foundation for uniting humanity in a common intellectual conversation and quest for knowledge.

            Selected numbers and growth by service:

            Directory of Open Access Journals 

            Highlights: in March 2016 DOAJ removed more than 3,000 journals, reflecting a new get-tough inclusion policy. All journals that had not gone through DOAJ’s new application process were removed. As a result, in spite of robust quarter since the removal process, most of DOAJ’s key data are lower at the end of 2016 than at 2015, with the exception of number of articles searchable through DOAJ which grew by 13%.

            • 9,455 journals (down from 10,963 in 2015, a 14% decrease. Note that this quarter DOAJ added 246 journals for a current growth rate of close to 3 titles per day).
            • 6,634 journals searchable at article level (down from 6,780 in 2015, a 2% decrease. Note that this quarter DOAJ increased the number of searchable journals by 217).
            • 2,400,258 articles (up 13% from 2,123,402 at the end of 2015, very impressive given the journal weeding process)
            • 128 countries (down from 136 at the end of 2016)

            Electronic Journals Library

            •  55,562 journals that can be read free-of-charge (up from 51,983 at the end of 2017, a 7% growth rate)

            OECD iLibrary  * (selected data points) (just added, no growth figures)

            • 11,050 e-book titles
            • 5,130 multilingual summaries
            • 5,200 working papers
            • 5 billion data points across 42 databases

              Directory of Open Access Books

              • 5,602 books (up from 3,789 at the end of 2015, a 48% growth rate)
              • 167 publishers (up from 134 at the end of 2014, 33 publishers added, a 25% growth rate)

              OpenDOAR 

              3,000 repository milestone!!!

              • 3,285 repositories (up from 2,991 at the end of 2015, a 10% growth rate)

              Registry of Open Access Repositories

              •  4,365 repositories (up from 4,147 at the end of 2015, a 5% growth rate)

              Bielefeld Academic Search Engine 

              100 million document milestone!!!
              5,000 content providers milestone!!!

              • 103,090,961 documents (up from 84.25 million at the end of 2015, a 22% growth rate)
              • 5,023 content sources (up from 3,965 at the end of 2015, a 27% growth rate)

              PubMedCentral

              4 million article milestone!!!

              •  4.1 million articles (up from 3.7 million at the end of 2015, an 11% growth rate)
              • 2,326 journals actively participating in PubMedCentral (up from 2,021 at the end of 2015, a 10% growth rate)
              • 1,720 journals with immediate free access (up from 1,553 at the end of 2015, an 11% growth rate)
              • 1,426 journals with all articles open access (up from 1,331 at the end of 2015, a 7% growth rate)
              • 569 journals with some articles open access (up from 423 at the end of 2015, a 35% growth rate)

                arXiv

                • 1,219,224 preprints (up from 1,105,906 at the end of 2015, a 10% growth rate)

                SocArXiv Preprints (launched December 7, 2016, inspired by arXiv)  **

                • 631 searchable preprints

                bioRxiv
                (in beta December 31, 2016, inspired by arXiv) ***

                • 7,500 articles (based on “all articles” search, 750 pages X 10 articles / page)

                RePEC

                2 million downloadable items milestone!!!

                • 2,021,534 downloadable items (up from 1,942,541 at the end of 2015, a 13% growth rate)

                ROARMAP

                • 803 total open access mandate policies (up from 762 at the end of 2015, a 5% growth rate)

                Internet Archive

                3 million milestones for video and audiorecordings!!!
                10 million milestone for texts (now 11 million)!!!

                • 11 million texts (up from 8.8 million at the end of 2015, a 26% growth rate

                Notes

                 * OECD iLibrary statement on free-to-read (from About page):

                All book and journal content is available to all users to read online by clicking the READ icon. Read editions are optimised for browser-enabled mobile devices and can be read online wherever there is an internet connection – desktop computer, tablets or smart phones. They are also shareable and embeddable.
                The site also features content for all users to access and download such as the OECD Factbook, OECD Working Papers, Indicators, and more.
                Subscribers benefit from full access to all content in all available formats.

                ** about SocArXiv (from the Dec. 7, 2016 launch announcement):

                SocArXiv, the open access, open source archive of social science, is officially launching in beta version today. Created in partnership with the Center for Open Science, SocArXiv provides a free, noncommercial service for rapid sharing of academic papers; it is built on the Open Science Framework, a platform for researchers to upload data and code as well as research results

                *** about bioRxiv (from about page):

                bioRxiv (pronounced “bio-archive”) is a free online archive and distribution service for unpublished preprints in the life sciences. It is operated by Cold Spring Harbor Laboratory, a not-for-profit research and educational institution. By posting preprints on bioRxiv, authors are able to make their findings immediately available to the scientific community and receive feedback on draft manuscripts before they are submitted to journals.

                This post is part of the Dramatic Growth of Open Access series.

                  Dramatic Growth of Open Access September 30, 2016

                  Highlights

                  There is plenty to celebrate for this year’s Open Access Week October 24 – 31 everywhere! 



                  As of Oct. 6, 2016, a Bielefeld Academic Search Engine (BASE) search includes over 100 million documents! Globally the collections of open access archives are now collectively an order of magnitude larger than the 10 million articles and books claimed by Elsevier for Science Direct. Congratulations to BASE and everyone in the repositories movement that is making this happen!

                  In spite of a vigorous weeding process, new get-tough inclusion policy and negative growth in the past year in journal numbers, the Directory of Open Access Journals showed an amazing 11% growth in the past year in articles searchable at the article level – about half a million more articles today than a year ago. This past quarter DOAJ showed a healthy growth rate of 135 titles or added 1.5 titles per day.

                  For every journal added by DOAJ in the past quarter, another repository was added to the vetted OpenDOAR collection of repositories.

                  The Internet Archive now has more than 3 million audio recordings.

                  The Directory of Open Access Books added over 2 thousand titles in the past year for a current total of over 5,000 titles (60% annual growth rate) from 161 publishers (41% annual growth rate in publishers).

                  The number of journals actively contributing to PubMedCentral continues to show strong growth in every measure: there are 212 more journal active participants in PMC today than a year ago, a 10% growth rate; 170 more journals provide immediate free access, an 11% growth rate; 113 more journals provide all articles as open access, a 9% growth rate; and the number of journals with some articles open access increased by 123, a 31% growth rate.

                  Full data is available for download from here.

                  This post is part of the Dramatic Growth of Open Access series. 

                  Dramatic Growth of Open Access September 30, 2016

                  Highlights

                  There is plenty to celebrate for this year’s Open Access Week October 24 – 31 everywhere! 



                  As of Oct. 6, 2016, a Bielefeld Academic Search Engine (BASE) search includes over 100 million documents! Globally the collections of open access archives are now collectively an order of magnitude larger than the 10 million articles and books claimed by Elsevier for Science Direct. Congratulations to BASE and everyone in the repositories movement that is making this happen!

                  In spite of a vigorous weeding process, new get-tough inclusion policy and negative growth in the past year in journal numbers, the Directory of Open Access Journals showed an amazing 11% growth in the past year in articles searchable at the article level – about half a million more articles today than a year ago. This past quarter DOAJ showed a healthy growth rate of 135 titles or added 1.5 titles per day.

                  For every journal added by DOAJ in the past quarter, another repository was added to the vetted OpenDOAR collection of repositories.

                  The Internet Archive now has more than 3 million audio recordings.

                  The Directory of Open Access Books added over 2 thousand titles in the past year for a current total of over 5,000 titles (60% annual growth rate) from 161 publishers (41% annual growth rate in publishers).

                  The number of journals actively contributing to PubMedCentral continues to show strong growth in every measure: there are 212 more journal active participants in PMC today than a year ago, a 10% growth rate; 170 more journals provide immediate free access, an 11% growth rate; 113 more journals provide all articles as open access, a 9% growth rate; and the number of journals with some articles open access increased by 123, a 31% growth rate.

                  Full data is available for download from here.

                  This post is part of the Dramatic Growth of Open Access series. 

                  Dramatic Growth of Open Access March 31, 2016

                  Highlights

                  Update April 12: congratulations to Bielefeld Academic Search Engine (BASE) – and all of the contributing repositories – now over 90 million documents.  On the Global Open Access List, BASE’s Dirk Pieper estimates that 60% of the content is open access.

                  There are now 150 publishers of peer-reviewed open access books listed in the Directory of Open Access Books, publishing more than 4,400 open access books. 620 books were published in this quarter alone, a 16% increase in just this quarter. The Directory of Open Access Journals has been adding titles at a net rate of 6 titles per day, 540 journals added this quarter for a total of over 11,000 journals. This is the highest DOAJ growth rate since this series started!

                  Bielefeld Academic Search Engine repositories collectively added more than 4.7 million documents this quarter for a total of just under 89 million documents.

                  SCOAP3 nearly doubled in size this past year (87% annual growth) for a total of 4,690 documents. arXiv grew by over 107,000 documents to over 1.1 million documents during the same time frame.

                  Internet Archive is likely to be featured in the next issue as it is currently edging towards a milestone of 10 million free texts.

                  The number of journals actively participating in PubMedCentral, making all content immediately freely accessible, and making all content open access, continues to grow. Meanwhile at PubMed a transition in indexing practice (from manual to automatic) means that a search for NIH-funded articles in the last 90 days significantly underreports results (1,402 NIH funded articles in the past 90 days compared with a range of 7,846 – 19,790 with a 90-day search limit for NIH funded article since 2008). Without the indexing, it is not possible to determine the percentage of full text. Here’s hoping the automated indexing process results in a catch-up soon; it doesn’t matter very much if the statistics for this series fall a bit behind, but people rely on this indexing to search for medical information.

                  The Electronic Journals Library added 3,612 journals that can be read free-of-charge in the past year, for a total of 52,000 journals, a 7% growth rate.

                  This post is part of the Dramatic Growth of Open Access series. Open data can be downloaded from the Dramatic Growth of Open Access dataverse.

                  Dramatic Growth of Open Access March 31, 2016

                  Highlights

                  There are now 150 publishers of peer-reviewed open access books listed in the Directory of Open Access Books, publishing more than 4,400 open access books. 620 books were published in this quarter alone, a 16% increase in just this quarter. The Directory of Open Access Journals has been adding titles at a net rate of 6 titles per day, 540 journals added this quarter for a total of over 11,000 journals. This is the highest DOAJ growth rate since this series started!

                  Bielefeld Academic Search Engine repositories collectively added more than 4.7 million documents this quarter for a total of just under 89 million documents.

                  SCOAP3 nearly doubled in size this past year (87% annual growth) for a total of 4,690 documents. arXiv grew by over 107,000 documents to over 1.1 million documents during the same time frame. 

                  Internet Archive is likely to be featured in the next issue as it is currently edging towards a milestone of 10 million free texts.

                  The number of journals actively participating in PubMedCentral, making all content immediately freely accessible, and making all content open access, continues to grow. Meanwhile at PubMed a transition in indexing practice (from manual to automatic) means that a search for NIH-funded articles in the last 90 days significantly underreports results (1,402 NIH funded articles in the past 90 days compared with a range of 7,846 – 19,790 with a 90-day search limit for NIH funded article since 2008). Without the indexing, it is not possible to determine the percentage of full text. Here’s hoping the automated indexing process results in a catch-up soon; it doesn’t matter very much if the statistics for this series fall a bit behind, but people rely on this indexing to search for medical information.

                  The Electronic Journals Library added 3,612 journals that can be read free-of-charge in the past year, for a total of 52,000 journals, a 7% growth rate.

                  This post is part of the Dramatic Growth of Open Access series. Open data can be downloaded from the Dramatic Growth of Open Access dataverse.