The Dramatic Growth of Open Access Series is a quarterly series (end of March, June, September, and December) of key data illustrating the growth of open access, with additional comments and analysis. The series is available in open data and blogpost (commentary) editions. The quarterly series began December 31, 2005, and is predated by a peer-reviewed journal article featuring data as of February 2005. To download the data or the rationale & method, see the Dramatic Growth of Open Access dataverse Morrison, Heather, 2014-03, "Dramatic Growth of Open Access", http://hdl.handle.net/10864/10660 Morrison, Heather [Distributor] V1 [Version]
Dramatic Growth of Open Access 2019
October 1, 2019
March 31, 2019
December 31, 2018: 2018: best year yet for open access
June 30, 2018
March 31, 2018
December 31, 2017
September 30, 2017
Items of interest since September 30, 2017:
Directory of Open Access Books reaches milestone of 10,000 books http://mailchi.mp/oapen.org/doab-milestone-10000-publications
UK is "undergoing a transition towards open access in the UK and, and this reports shows...we are increasing the proportion of our research which is available open access at a considerable rate. We now make 37% of our outputs freely available to the world immediately on publication, and this increases to 53% after 24 months. Tickell, A., Chair, Universities UK, Monitoring the transition to open access: December 2017 https://www.elsevier.com/__data/assets/pdf_file/0011/547958/UUK_Report_2018_A4_Digital_FINAL.pdf
June 30, 2017
Items of interest since June 30, 2017:
PLOS reaches milestone of 200,000 articles http://blogs.plos.org/plos/2017/07/publishing-milestone-plos-research-articles/
March 31, 2017: data is available for download from the dataverse. No commentary post this quarter.
Items of Interest since March 31, 2017
Kramer, D. (2017). Steady, strong growth is expected for open-access journals. Physics Today 70:5, 24 doi: 10.1063/PT.3.355 http://physicstoday.scitation.org/doi/pdf/10.1063/PT.3.3550
December 31, 2016 Dramatic Growth of Open Access
September 30, 2016 Dramatic Growth of Open Access http://poeticeconomics.blogspot.ca/2016/10/dramatic-growth-of-open-access.htmlhttp://poeticeconomics.blogspot.ca/2016/10/dramatic-growth-of-open-access.html
June 30, 2016 Dramatic Growth of Open Access http://poeticeconomics.blogspot.ca/2016/06/dramatic-growth-of-open-access-june-30.html
Items of interest since June 30, 2016:
PubMedCentral now has more than 4 million articles
Over 1 billion CC licensed works
March 31, 2016 Dramatic Growth of Open Access
Update: DOAJ announces milestone of addition of PLOS metadata, instantly growing by 182,500 articles
December 31, 2015 Dramatic Growth of Open Access
June 30, 2015 Dramatic Growth of Open Access
2015 March 31, 2014
Items of interest since March 31:
Healthy growth in open access journals and articles published in them (thanks to Walt Crawford).
2014 December 31, 2014 - 30 indicators of growth beyond the ordinary
2014 September 30, 2014 - useful facts and figures for Open Access Week http://poeticeconomics.blogspot.ca/2014/10/dramatic-growth-of-open-access.html
Items of interest since September 30:
Khabsa & Giles (2014). The number of scholarly documents on the public web. PLOS ONE http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0093949#pone-0093949-g003
- estimates 114 million freely available english language scholarly documents
2014 Second Quarter (June 30, 2014) (with Jihane Salhab) http://poeticeconomics.blogspot.ca/2014/07/dramatic-growth-of-open-access-june-30.html
Items of interest since June 30:
Open Access Directory sails past 4 million view https://plus.google.com/u/0/+PeterSuber/posts/fhnyVTDsLQz
2014 First Quarter (March 31, 2014) http://poeticeconomics.blogspot.ca/2014/04/dramatic-growth-of-open-access-first.html
Items of interest since March 31, 2014
- Two milestones for the Open Access Tracking Project - 30,000 tagged resources in the project database and 20,000 in the project feed (thanks to Peter Suber)
- Two milestones for the Bielefeld Academic Search Engine - over 60 million documents, over 3,000 content providers
- June 4: the home page for Peter Suber's MIT Press book Open Access passed the milestone of 100,000 page views (I highly recommend this as an excellent brief starting point for learning about OA).
December 31, 2013 Dramatic Growth of Open Access: first open source edition
The unstoppable growth of high quality open access resources - December 2013 early year-end edition.
Items of interest since December 11, 2013:
- Team Open - stories of the value of sharing through Creative Commons http://teamopen.cc/all/
- British Library open 1 million public domain images to the net for re-use
- BioLine International celebrates 20th birthday
- Australian Open Access Support Group in 2013
- Hilda Bastien, Scientific American Open access 2013: a year of gaining momentum
Items of interest since September 30, 2013:
DOAJ notes that due to continuous improvement DOAJ has been deleting as many titles as it has been adding since August 2013. For this reason, DOAJ has been tantalizingly close to 10 thousand titles for some time.
PLoS celebrates milestone of100,000th article
SCOAP3 set to begin January 1, 2014
The unstoppable rise of open access. Spotlight by Peter Gruss, President, the Max Planck Society.
June 30, 2013 Dramatic Growth of Open Access
Items of interest since June 30, 2013:
- Times Higher Education article - Open access gains ground (based on EU Commission below)
- BASE hits the 50 million record mark!
- European Commission: Open access to research publications reaching 'tipping point'
- Cool stats about CanLII, Canada's legal scholarship open access initiative: http://www.nationalmagazine.ca/Blog/July-2013/15-things-you-didn-t-know-about-CanLII.aspx [Disclosure: the École des sciences de l'information / School of Information Studies at the University of Ottawa is one of the sponsors of the CanLII Hackathon this September]
- SpringerPlus Journal (a new PLoS ONE clone) announced a milestone of over 1,000 articles (Comment - this tends to support my hypothesis of 2011 that open access has moved into an age of competition).
March 31, 2013 Dramatic Growth of Open Access
Download data, word version of commentary, chart
Items of interest since March 31, 2013
Bjork et al, preprint, Subject repositories: an overview http://www.openaccesspublishing.org/repositories/Subject_Repositories.pdf
Outsell Open Access Report
December 31, 2012 Dramatic Growth of Open Access
Items of interest since December 31, 2012
Peter Suber posts DOAJ details and analysis including breakdown.
DOAJ article search exceeds 1 million articles! - and for the first time more than half of the journals listed in DOAJ are provided article level metadata.
Anatomy of green open access - forthcoming article by Bjork, Laakso, Welling and Paetau
December 2012 early year-end edition
Items of interest since December 11, 2012
Open Access Tracking Project milestone - more than 20,000 items tagged since 2009 (thanks to Peter Suber)
MedOANet Open Access Tracker
combines and visualizes open access data for Mediterranean countries
Thank you, open access movement! September 30, 2012 Dramatic Growth of Open Access
June 30, 2012 Dramatic Growth of Open Access
Items of interest since June 30, 2012
Public Library of Science celebrates milestone of 50,000 articles published (July 10, 2012)
Open Access Map - please help Ross Mounce build this visual approach to seeing the extent and growth of open access by adding repositories and other services that you know about.
Megajournals - trading knowledge. Interesting blogpost on large open access publishing operations - some data, more qualitative background.
Open Access in the UK - graph from Nature illustrating difference in open access by discipline. Found that of the approx. 85,000 articles published by researchers in the U.K. indexed in Web of Science in 2010, 40% were open access as of 2012 - 5% gold, 35% green. (My note - Web of Science will tend to understate research activity in the humanities and social sciences). Data from Yassine Gargouri according to Alma Swan on the GOAL list.
Open access and the dramatic growth of PLoS ONE, by Graham Steel
YouTube breaks records with 4 million creative commons licensed videos
Directory of Open Access Journals now has more than 8,000 journals
Two milestones - 600+ scholarly societies publish 700+ open access journals
OA coming of age - opinion piece by David Solomon and Bo-Christoph Bjork in The Scientist
The impact of funding agency open access policies (March 31, 2012 Dramatic Growth of Open Access
Items of interest since March 31, 2012:
Happy 2012 Open Access Movement! December 31, 2011 Dramatic Growth of Open Access
Items of interest since December 31, 2011
Mendeley Open Access update - Repository Man Les Carr congratulates Mendeley on a 47% increase in OA computer documents, reflecting an increase in participation. (Note: I haven't been able to find the full Mendeley OA count recently so have dropped them off of the Dramatic Growth of Open Access. Any tips on how to quickly figure this number would be most appreciated).
Hathitrust - 10 million and counting
Steady growth for Open Journal Systems and Open Conference Systems - thanks to Kevin Stranack:
The NIH Public Access Policy http://publicaccess.nih.gov/public_access_policy_implications_2012.pdf
KEY FACTS ABOUT PMC:
- Over 2.4 million articles are now in PMC.
- In addition to the NIH-funded papers deposited into PMC, publishers voluntarily deposit more than 100,000 papers per year.
- Every weekday, one half million users access the database, retrieving over 1 million articles.
- Based on internet addresses, an estimated 25% of users are from universities, 17% are from companies, and 40% from the general public.
December 11, 2011
Items of interest since December 11, 2011
20 million item on Europeana
Creative Commons 9th birthday - 500 million CC licensed items
Growth in scholarly society OA publishers since 2007 (Dec. 2)
Mike Eisen's blogpost listing 9 PLOS ONE clones supports my June 30 hypothesis that we are entering a phase of competition for open access
PLOS ONE 5th birthday many milestones
- The growth of the PLoS ONE exceeded even the most optimistic predictions. In the first full year of publication it published 1,230 articles (making it larger in volume than all but about 100 journals) and, within 4 years, it became the largest peer-reviewed journal in the world. To date, PLoS ONE has published more than 28,700 articles and in 2011 alone it will publish almost 14,000 articles (meaning that approximately 1 in 60 of all articles indexed by PubMed for 2011 will have been published in PLoS ONE).
2010/11 Report on Open Access and Preservation Policies in Europe
Katarina Lovrecic Open Access year-end highlights: coming up roses?
Peggy Schaeffer Dryad milestone - 100th journal (many, but not all, are open access)
2011 letter from Gregg Gordon, President, SSRN
Social Sciences Research Network stats
Quick reference (for viewing)
Quick reference (download as excel or PDF)
Rationale and method
Dataverse for downloading data.
Items of interest since September 30, 2011
Sherpa services blog: 60% of journals allow immediate self-archiving of post peer-reviewed articles
Open Access Directory just sailed past our 2 millionth view of the OAD
One million works available online through RePEC (Nov. 26, 2011)
Let the competition begin! June 30, 2011 Dramatic Growth of Open Access
Quick reference (viewing)
Quick reference (download as excel or PDF)
Rationale and method
Dataverse for downloading data.
Items of interest since June 30, 2011
- Walters, W. H., & Linville, A. C. (2001). Characteristics of open access journals in six subject areas. College and Research Libraries, 72(4), 372-392. Retrieved from http://crl.acrl.org.proxy.lib.sfu.ca/content/72/4/372.abstract. Good analysis of English-language DOAJ journals. Understates growth of OA, based on an article by Sally Morris. See here for critique of this approach.
- Bhaskar Mukherjee and Mohammad Nazim have published "Open Access Institutional Archives: A Quantitative Study (2006-2010)" in the DESIDOC Journal of Library & Information Technology.. Link to Charles Bailey's Digital Koans excerpt rather than article per se as I am not able to connect to the journal today.
- Increasing percentage of content in UK PMC is fully open access
- Anticipating OA Growth: Nature Publishing Group
- BASE reaches 2,000 repositories (August 17, 2011
- Nature News Blog: How Many Research Papers are Freely Available?
- OpenDOAR exceeds 2,000 repositories listed
- Mendeley exceeds 100 million papers!
- PMC growth: about one free fulltext per minute
- Nature Publishing Group annual letter to customers (2011) lots of stats on NPG's expanding OA options
March 31, 2011 Dramatic Growth of Open Access
- Quick reference (viewing)
- Quick reference (download as excel or PDF)
- Dataverse (for downloading data, rationale & methodology
Lewis, David W. (2010) How to think about the Pace of Substitution of Open Access Academic Journals for Traditional Subscription Journals https://scholarworks.iupui.edu/handle/1805/2030
Over 9,000 OJS installations (PKP, April 7, 2011)
The PubMedCentral Picture: Steady Growth, Downloadable Stats OpenBioMed.Info
BASE number counter fixed with new version: 1 million more records than recorded in Dec. 2010 (26,498,582 from 1,693 content providers as of February 14, 2011)
Hindawi 40% growth in submissions in 2010
PLoS ONE: now THE world's largest journal?
2010 Dramatic Growth of Open Access
2010 Show Growth - for quick 2010 annual growth stats plus average daily, weekly, and monthly growth by service
Polish version created by E-LIS Editor Bożena Bednarek-Michalska, which can be found here and here.
Thompson-Reuters chart shows 20% gold OA article growth as compared to 3.5% overall article growth
December 11, 2010 early year-end edition
During the week of October 4 - 8, 2010, open access and free journal collector extraordinaire Jan Sczcepanski collected his 10,000th journal. Thanks, Jan!
Preliminary results of SOAP (Study of Open Access Publishing) Survey. At least 120,000 articles / year published as open access (this is about 8% of the estimated 1.5 million peer-reviewed articles published per year). Excludes non-english journals.
September 30, 2010
Hindawi's monthly submissions grow to over 2,000 September 7, 2010 announcement from Hindawi's Paul Peters
More than 25 million records in BASE August 3, 2010 announcement, Dirk Pieper, BASE
June 30, 2010
Wellcome Trust: Robert Kiley reports 44% compliance rate with OA policy for 2009
March 31, 2010
Social Science Research Network
2010 is our 16th year and it is off to a great start. Our eLibrary (http://ssrn.com/search) has delivered over 37.4 million downloads to date and grown to 290,000 documents and 138,000 authors - increases over the last year of 53,000 and 22,000 respectively. Our CiteReader technology, developed with ITX Corp, has captured over 6 million references, 5.7 million footnotes, and close to 3.9 million citation links. We believe this growth in multi-disciplinary, open access content is exciting and contributing to innovative scholarly research in social science and humanities.
PLoS One: Open Access to the Scholarly Journal Literature: Status 2009. Random study of 1,837 titles found of articles published in 2008, over 8% were open access on the publisher's website, and over 11% otherwise freely available, for an overall average of over 20% of articles freely available. There was a disparity in results by discipline.
Project Euclid exceeds one million pages of open access content.
NDLTD Union Catalog Surpasses One Million Electronic Theses and Dissertation
Over 20% of world's scholarly journals are now fully open access - kudos to DOAJ!
Internet Archive: Over 1 Million Books now Available Free to the Print Disabled
March 31, 2010
Notes February 3, 2010: Jim Tills' method for determining CIHR policy compliance, and more than 5,000 journals using OJS.
December 31, 2009, New Year's Eve edition
December 11, 2009, early year-end edition
Strong Open Access Growth Reported by Hindawi. Hindawi's figures for 2009 show more than doubling of submissions, and strong growth in accepted manuscripts, indicating that in addition to strong growth in number of OA journals, there is evidence of strong growth in articles within established OA journals as well.
September 30, 2009
The Dramatic Growth of PLoS One: soon-to-be world's largest journal
June 30, 2009
March 31, 2009
Update April 7: Open-access policy flourishes at NIH. Meredith Wadman. Nature News, April 7, 2009. Thanks to Peter Suber on Open Access News.
Looking for downloadable data? Go straight to the DGOA Dataverse.
Directory of Open Access Journals (DOAJ) Growth 2005-2008. Charts illustrated the growth in journal titles, journals searchable at article level, articles searchable at article level, and growth in growth rate for all measures in 2008.
Open Access Journals: Around the World, and Top OA Journal Countries
OpenDOAR exceeds 1,300!
December 31, 2008 Open Data - Happy New Year Brief Edition
December 11, 2008 Early Annual Edition
September 30, 2008
More evidence of a spike in DOAJ in 2008
Gavin Baker presents more evidence of a spike in DOAJ in 2008. Factors to consider when considering DOAJ as an imperfect measure of open access journal numbers and growth are presented.
arXiv exceeds half a million items! (October 3, 2008)
Estimate: NIH Public Access compliance rate has already tripled with mandatory policy (up to August 2008)
Twice as much gold OA articles in 2008 as in 2006!
Housekeeping: Dramatic Growth of Open Access Release Dates
DOAJ Over 200,000 searchable articles!
DOAJ growth rate nearly doubles in a year. From 2007 to 2008, the DOAJ growth rate increased from 1.2 to 2.2 new titles, on average, per calendar day.
Noteworthy Dramatic Growth July 2008: PMC and RoMEO
Scientific Commons exceeds 20 million items (July 2008)
Dramatic Growth of Open Access: June 30, 2008 update - note corrections to growth rate
Open Data Edition (showing quarterly and annual growth) - plus PMC free data, second sheet.
Open Data Edition (just data)
The Dramatic Growth of Open Access: Open Data Edition (from March 31, 2008)
The Dramatic Growth of Open Access: Open Data Full Data Edition (to March 31, 2008)
March 31, 2008
More baseline data for PubMedCentral. Baseline data for PMC on the eve of the NIH new open access mandate, April 7, 2008.
Cancer literature: 13% free. Baseline data for free full-text, before the NIH open access mandate takes effect.
December 31, 2007 Dramatic Growth of Open Access
Dramatic Growth of Open Access: 2007 Interim Report and Predictions for 2008 Minor Update
Directory of Open Access Journals: Already the Biggest Big Deal?
DOAJ: 80 new titles in 30 days (Nov. 28, 2007)
September 30, 2007
- The Dramatic Growth of Open Access: September 30, 2007 Update
- Dramatic Growth September 2007 Open Data Edition
June 30, 2007
March 31, 2007
Dramatic Growth March 2007 Update & Open Data Edition
December 31, 2006
Dramatic Growth December 2006 & Predictions for 2007
September 30, 2006
September 2006 Update.
June 30, 2006
June 30, 2006 Update.
March 31, 2006
March 31, 2006 Update.
December 31, 2005
Dec. 31, 2005 Update and 2006 Predictions
February 2005 data
The Dramatic Growth of Open Access: Implications and Opportunities for Resource Sharing, Journal of Interlibrary Loan, Document Delivery & Electronic Reserve, 16, 3 (2006).
About the Dramatic Growth of Open Access Series
- DOAJ: Strong Growth, and Understanding the Numbers
- Dramatic Growth of Open Access Inclusion Criteria
40 new titles added to PubMedCentral in the last 60 days!
PubMedCentral Journals: Baseline Data
This post is designed to gather other posts and data editions of this series, and is backdated so that updates are not incorrectly identified as new posts.
Last updated September 23, 2007