Helpiyo - Get help when you need it. Help others when you can.
NationBuilder - The world's first platform for leaders, handcrafted from scratch to help you grow your community and lead them to action.
Volley - A friendly place for helping others
Crowded Communities - The all-in-one community platform.
awesome - A dynamic window manager for the X Window System developed in the C and Lua programming languages.
Ning - Ning is the social platform for the worlds interests and passions online.