TheBrain : TheBrain is a mind mapping and personal knowledge base software
ClickHeat : ClickHeat is a visual heatmap of clicks on a HTML page, showing hot and cold click zones. ClickHeat is an OpenSource software, released under GPL lice...
TWiki : TWiki® is a flexible, powerful, and easy to use enterprise wiki, enterprise collaboration platform, and web application platform. It is a Structured W...
Tiki Groupware/CMS : Tiki Wiki CMS Groupware is a free and open source Wiki-based content management system and online office suite written primarily in PHP and distribute...
Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code.