Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
Apache JSPWiki - Apache JSPWiki is an open source Wiki engine, feature-rich and built around standard JEE components.
Pasteline - Pasteline is an app for quickly saving notes, quotes, and links.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
Lampant - Helping organizations find and act on the best ideas
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.