The Nucleic Acids Symposium Series consists of the proceedings of the Symposium on Nucleic Acids Chemistry held annually in Japan. The online edition of the series is freely available to all, therefore no subscription is needed. Limited copies of the proceedings are printed and distributed to delegates at the symposium.
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.