At stake are the abilities of libraries to offer universal access to information;consumers to have competitive access to diverse sources of content, including noncommercial content; citizens to have free or cheap access to the government information that their tax dollars have financed; and students to perform research and collaborate online with each other. At stake are the ability of musicians and other artists to pioneer new forms of online creativity; creators in all media to freely quote and use a robust public domain of prior works; computer users to benefit from the innovations of competitive markets; and individuals to control how intimate personal information will be used.
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.