Chemical blogspace "collates posts from chemistry blogs and then does useful and interesting things with that data."
For example, you can see which papers are currently being discussed by organic chemists, or which web pages are being linked to by chemoinformaticians It's sort of like a hot papers meeting with the entire chemistry blogging community. Sort of.
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.