Just released on The Imaginary Journal of Poetic Economics
The most amazing growth story of the first quarter of 2011 is that of Mendeley, jumping half a million articles downloadable for free, from 300,000 to 800,000, growth of 171% in just one quarter!! Since Mendeley is a DIY tool for researchers, this amazing growth illustrates that there is a considerable appetite for self-archiving, once the researcher has a service that appeals to them. Analysis this quarter focuses on the strong growth rate of so many open access initiatives in comparison to the overall 3-3.5% average growth of scholarly articles and journals. Data is presented that strongly suggests that the success rate for open access journals is already higher than that of subscription journals in this and a related post, Those Active Open Access Journals!. Congratulations to DOAJ for announcing the DOAJ new interface – and surpassing the milestone of more than half a million articles available through the DOAJ article search! As DOAJ’s Anna-Lena Johannson expresses it: DOAJ now has more than 6,300 journals, more than 100 countries, over 50 languages, and more than 2,500 journals providing metadata at article level. . Another indication of the international reach of the open access movement from Katarina Lovrecic; there are 133 OA journals in Croatia, and 129 or 97% of the journals in the Croatian Hrčak portal are open access. An additional 47 journals are actively participating in PubMedCentral; the growth for journals in PMC providing immediate free access is 40, and the full open access PMC journal growth rate is 33. This issue of the Dramatic Growth of Open Access introduces two new features for the very busy – a quick numbers section, and a quick reference edition.
# of open access journals (DOAJ): over 6,000. Growth rate: 4 per day.
# of freely available journals (Electronic Journals Library): over 28,000. Growth rate: 10 per day.
# of open access repositories: close to 2,000 (OpenDOAR). Growth rate: 1 per day.
# of documents freely available (BASE): 25 million. Growth rate: 6,000 per day.
# of open access mandate policies (ROARMAP): 271. Growth rate: 1 per week or 5 per month.
% of world’s scholarly literature that is freely available: 20% (Bjork et al)