Building on an earlier effort by Lesley Perkins, I’ve created a new Blogdigger aggregate feed for open access Weblogs that includes a wider selection of Weblogs. I’ve also created an Open Access Update Web page that presents the latest 30 headlines from the aggregate feed and provides links to OA-related mailing list archives, Peter Suber’s OA overview, OA-related journals, and OA-related Wikis.
Postscript: There were technical problems with updating the Blogdigger feed, and it has been deleted. See: "Open Access Update Web Page: New Aggregate Feed."