OpenideaL - Get OpenideaL's open source idea management platform, collecting insights from employees & customers, with DevOps support from HOSSTED.
Xmind - Xmind is a brainstorming and mind mapping application.
Idea Drop - Set team challenges to capture the very best business ideas
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Codigital - Ideas Engine is a software for large groups that generate, prioritize and refine ideas and integrates with Social Networks and Intranets.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.