A commentary by Gerard Arthus argues that, with regard to digital collections of public domain works, claims to restrict uses "cannot be legally enforced and are misleading at best".
A startup company called SkyRiver plans to market an alternative to OCLC's cataloging services. Unlike OCLC, the competitor "makes no claims to own the records contained within its bibliographic database. ... Once received from SkyRiver, libraries can use the records in any way."
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.