PubMed Central has an email list for announcements and other PMC news. Because it's two years old and still a fairly well-kept secret, PMC will soon publicize the list on its web site. New subscribers must sign up through the web form.
Posted by
Peter Suber at 12/09/2003 02:35:00 PM.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.
I recommend the OA tracking project (OATP) as the best way to stay on top of new OA developments. You can read the OATP feed on a blog-like web page or subscribe to it by RSS, email, or Twitter. You can also help build the feed by tagging new developments you encounter.