Reme Melero has made a list of the OA repositories in Spain. Most, but not all, already appear in OpenDOAR and ROAR. The page also includes a Google custom search engine for searching across this set of repositories.
Update. Also see the OAI harvester for Spanish repositories, from the Spanish Ministry of Culture. (Thanks to Klaus Graf.)
Posted by
Peter Suber at 4/24/2007 09:22:00 AM.
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.