The Spring 2004 issue of the ASIDIC Newsletter has a special section on Open Access Publishing (pp. 9-11). The section contains three short contributions (no direct links, unfortunately):
Helen Doyle, Public Library of Science (PLoS): Committed to Making the World's Scientific and Medical Literature A Public Resource
Edwin Sequeira, PubMed Central
Miriam Drake, Access to Government-Funded Information
Posted by
Peter Suber at 5/25/2004 12:52:00 PM.
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.