Péter Jacsó, SCImago Country Rank Database, Péter's Digital Reference Shelf, February 2009. A review of the OA SCImago database of journal data.
... Scimago is a top-notch free system with extensive and very important bibliometric statistics about nearly 16,000 serial publications (that I did not review here) and more than 230 countries and territories. ... [T]he free Scimago Country Database (which is far more than a Country Rank list), is an excellent free ready-reference source.
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.
