Myotis is a CMS based on Cocoon and PostreSQL. Its
main features are wiki formatting for content, RSS
and Atom feeds for content and comments, comments
for all content, full Web-based management, and
full compliance with XHTML 1.0 and CSS 2.0.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.