The Open Software Wiki – SWiK
http://www.swik.net/

SWiK.net is a project to help people collaboratively document open-source software.
SWiK is visited by tens of thousands of people daily, it’s a place to make notes and publish articles on software development and open source projects, tag projects to help organize the world of open source, or just browse around and find interesting new open source software and other neat stuff. This wiki is community run and completely open – it depends on editors like you to help build pages with useful information about using open source software and developing applications. The wiki engine is written from scratch by SourceLabs. This has been added to World Wide Web Reference Subject Tracer™ Information Blog.