SubWiki

SubWiki is a Subversion-backed Wiki program. Wikis have sprung up on the World Wide Web as unique publishing and community tools—essentially, web-based interfaces for editing web pages. SubWiki takes the Wiki concept one step further by using a version control system for its backend storage mechanism. The result is a CGI program which allows web pages to be essentially edited in-place, yet never loses old versions of those web pages.

To learn more about SubWiki, visit that project's website at http://subwiki.tigris.org/.