Peter Suber has published "Open Access Journals from Society Publishers" in the latest issue of the SPARC Open Access Newsletter.
Here's an excerpt:
How many scholarly societies publish OA journals, and how many OA journals do they publish? Four years ago (November 2007), Caroline Sutton and I released the first edition of our inventory answering those questions, and today we release the second edition.
Cutting to the chase: Our 2007 list turned up 425 societies publishing 450 full or non-hybrid OA journals. Our 2011 list shows 530 societies publishing 616 full OA journals. . . .
In 2007, only 15 (3%) society OA journals used CC licenses. In 2011, 92 (15%) do so, a small fraction but a distinct improvement. An additional 45 journals (7%) let authors retain copyright but do not publish under open licenses. Despite the improvement from four years ago, these are deeply disappointing numbers. As of last week (November 25, 2011) 1,727 or 24% of all the OA journals listed in the Directory of Open Access Journals used CC licenses. Hence, society OA journals use CC licenses at an even lower rate than OA journals in general.