In brief: the Directory of Open Access Journals now lists 5,864 titles, having added more than 1,300 over the past year, or close to 4 titles per day (a growing growth rate!). 
OA is growing fast in the medical area; more than half the research funded by NIH indexed in PubMed is now freely available, regardless of publication. The number of journals actively participating in PubMedCentral is growing - now over 1,000 titles; over half provide OA to all articles, and nearly 60% provide immediate free access. Percentage-wise, OA mandates continue to lead in growth, with a total of 24 mandates added to ROARMAP this quarter, with the eprints OA Week Mandate Challenge a likely contributing factor. This fall's OA Week was the biggest ever. A unique OA milestone this quarter was Jan Szczepanski's personal OA title collection exceeding 10,000 titles. Looking forward to 2011 and beyond, clearly this is just the beginning! Suggested OA New Years' Resolutions: adopt and implement an open access mandate policy, join the Compact on Open Access Publishing Equity (COPE) or the Open Access Scholarly Publishers Association (OASPA) or both - or just keep up the good work and know that the small efforts the many thousands of us are making are adding up to all the difference in the world.
Downloadable data is available at the DGOA Dataverse, or go to Google Docs to view the full data edition, or the show growth edition which highlights quarterly and annual growth. Previous editions of Dramatic Growth can be found here.Details
Selected numbers
DOAJ: 5,864 titles
412 added this quarter (nearly 6 per day!)
1,374 added this year (about 4 per day)
2,435 journals searchable at article level
485,034 articles searchable at article level
Open J-Gate (portal to english-language OA journals): 7,921 titles (1,796 added this year
of these, 4,721 are peer reviewed (1,211 added this year)
PubMedCentral:
1,009 journals actively participating (49 added this quarter)
596 journals with immediate free access (40 added this quarter)
515 journals will all articles open access (35 added this quarter)
# of repositories:
OpenDOAR: 1,815 (78 added this quarter)
Registry of Open Access Repositories: 2,049 (180 added this quarter)
# of documents in repositories: ?? Normally, I rely on totals at the meta-search engines for repositories. This quarter, Scientific Commons shows no difference from the previous quarter, while the Bielefed Academic Search Engine is down one service provide, and up less than a thousand documents. This makes no sense at all - RePEC alone added 35,000 documents. OAIster has noted an increase of 2 million documents since the last report (some time ago), up to 25 million. Does anyone know what is happening with the meta search tools? Maintenance perhaps? If so, a quick note on the website for the benefit of those of us looking at the numbers would be helpful.
Open Journal Systems: 7,500 journals are using OJS.
Why am I optimistic that this is just the beginning? Thanks to many conversations with librarians (and publishers) at library and academic conferences this year, I know that there are a great many activists in scholarly, library, and publishing circle, working hard to make open access happen and how to transition the system as a whole, to make it easier to make OA happen. Because of my work co-coordinating the ARL ACRL Institute on Scholarly Communication webinar series this year, I know that there are many people in libraries across North America that have already developed significant expertise in this area, others are working to get up to speed, and many libraries are in the process of moving from a step-by-step to a comprehensive programming approach to open access.
Update December 15, 2010: in case it is not obvious, the charts in this post are all mine, created from data that I have collected over the years. Please feel free to re-use the charts according to the IJPE CC-BY-NC-SA license - but be sure to attribute me and IJPE! ~ Heather Morrison
