Monday, December 31, 2012
December 31, 2012 Dramatic Growth of Open Access
2012 was another awesome year for open access!. This post highlights and celebrates just how much open access is available already. The Bielefeld Academic Search Engine (BASE) cross-searches over 40 million documents in over 2,400 repositories - nearly double the number in just 3 years, demonstrating yet again strong growth in open access archiving. The Directory of Open Access Journals, in addition to listing fully open access journals, provides an article-level search that is available for a growing percentage of DOAJ journals. The number of articles searchable through DOAJ is just under one million - a third of this growth taking place in 2012 . What a great way to show that not only is the number of open access journals growing rapidly - more importantly, the number of articles published in open access journals is growing even more dramatically!
A heartfelt thanks to everyone around the world who is making open access happen - all of the scholars sharing our work, readers, advocates, repository managers, publishers, librarians, and others. All the best to you and your OA endeavours in 2013!
Notable annual growth by percentage
Directory of Open Access Journals - articles searchable by article level grew by 234,449 articles to a total of 955,720 articles, an increase of 33% on a substantial base. The Registry of Open Access Repositories showed a growth rate of 730 repositories or 28%, a somewhat puzzling contradiction to the relatively slow growth rate of OpenDOAR. The number of journals depositing all articles in PubMedCentral as open access grew by 191 to a total of 893, a 27% increase this year, and the number of paper downloads from the Social Sciences Research Network was more than 2 million higher this year than in 2011 (10 million downloads total), for a 27% increase.
Directory of Open Access Journals
2012 growth: 1,147 journals (3 journals / day)
# articles searchable at article level: 955,720
2012 growth in searchable articles: 234,449 (642 articles / day)
Directory of Open Access Books
1,259 academic peer-reviewed books from 35 publishers
new in 2012
Electronic Journals Library
37,805 journals that can be read free of charge
2012 growth: 5,421 journals (15 journals / day)
Highwire Press Free Online Articles
2,151,420 free articles
2012 growth: 41,640 articles (114 articles / day)
2012 growth: 89 repositories (7 repositories / month)
Pablo de Castro (see comments) explains the discrepancy in the growth rates of OpenDOAR and ROAR: the growth rate mismatch between ROAR and OpenDOAR is due to an intensive database cleansing by the latter towards the end of 2012 that led to removal of a number of wrong/outdated entries.
Registry of Open Access Repositories (ROAR)
2012 growth: 730 repositories (2 repositories / day)
Bielefeld Academic Search Engine (BASE)
2012 growth: 6,908,293 documents (18,926 documents / day)
2,600,000 articles (from PMC site)
2012 growth: 300,000 articles (from PMC site - update schedule not known so not sure about accuracy)
1,199 journals deposit all articles in PMC
2012 growth: 220 journals (.6 journals / day
2012 growth: 83,886 e-prints (230 e-prints / day)
14,206 documents as of Jan. 1, 2013 (courtesy Pablo de Castro - see comments)
14,242 documents as of Dec. 11 - cannot find # of documents on new site (E-LIS migrated to a new e-prints server in the past few days - looks great!)
Social Sciences Research Network
372,772 full-text papers
2012 growth: 65,715 full-text papers (180 / day)
Open Access Mandate Policies (from Registry of Open Access Material Archiving Policies)
353 open access policies (total)
2012 growth rate: 44 policies (4 policies / month)
(new in 2012)
The full data edition can be downloaded from SUMMIT, the SFU Institutional Repository
Correction Jan. 13, 2013 - the correct number is .4% not .04% as originally posted. Thanks to Bryan Thompson (see comment below). Informal peer review of this kind is very much appreciated! There's a lot of math and a second pair of eyes always helps, especially since I often do this work quite late in the evening.
Elsevier claims to serve "more than 30 million scientists, students and health and information professionals worldwide" from: http://www.elsevier.com/about/at-a-glance
This is .04% of the 7 billion people on this planet open access aims to serve! Note that internet access and literacy is required to take advantage of open access to the scholarly literature - but unlike Elsevier, open access is not placing barriers, we're just doing the best we can to overcome them.
This post is part of the Dramatic Growth of Open Access series.