Molecules@gnu-darwin.org is an OA database of "more than 4 million small molecule structure files in pdb format, and molecular graphics representations. About 50 million molecules are still in the pipe ...". (Thanks to Antony Williams.)
See also Williams' comments on the database:
The statement that there are 50 million molecules in total coming suggests that the database is a republication of PubChem and the SDF archives seem to suggest so too ...
At present the database therefore appears to be the PubChem database in PDB format. ...
Posted by
Gavin Baker at 8/28/2008 08:28:00 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.