Bill Hubbard discusses repository policies, such as what should happen to an author's deposits in an institutional repository when the author leaves the institution.
Bill Gasarch and Daniel Lemire are sparking conversation with their "manifestos" on OA. Their exhortations: "Whenever you publish a paper in a conference or journal, post it on your website or on some appropriate archive" and "If you get a contract to write a book make sure they allow you to post it free online."
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.