From the blog, Imaginary Journal of Poetic Economics dated December 31, 2012, Heather Morrison compiles data about the growth of open access during 2012. Here are some highlights:
Directory of Open Access Journals
8,519 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)
Registry of Open Access Repositories (ROAR)
3,340 repositories
2012 growth: 730 repositories (2 repositories / day)
arXiv
809,849 e-prints
2012 growth: 83,886 e-prints (230 e-prints / day)
PubMedCentral
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
Registry of Open Access Material Archiving Policies (open access mandate policies)
353 open access policies (total)
2012 growth rate: 44 policies (4 policies / month)
For the complete blog entry:





