Gerardus 't Hooft, Editorial, Foundations of Physics, January 2007. Excerpt:
The former letters publication, Foundation of Physics Letters, now merges with Foundations of Physics. Short papers that demand a rapid publication process will be included in the special section “Letters to the Editor” (and will be available as open access papers, without open access fee).
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.