The OA journal, Neurobiology of Lipids (NoL), has added an article-level search box for the Directory of Open Access Journals to the NoL web site. The search box defaults to searching NoL, but also enables users to search the other OA journals participating in the DOAJ's article-level search program. Kudos to Alexei Koudinov, the NoL editor, for this useful innovation. (PS: This is an excellent way for OA journals to help their users and promote OA at the same time.)
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.