GroupMap - GroupMap is a software program that allows you to harness group creativity and the power of collaboration through group brainstorming.
Xmind - Xmind is a brainstorming and mind mapping application.
Kinopio - Thinking canvas for mind mapping, brainstorming, and moodboards
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
dotstorming - A space for real-time brainstorming and decision making
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.