Flare by GoDaddy - Discover, give feedback and support startup ideas
Xmind - Xmind is a brainstorming and mind mapping application.
Generating Product Ideas - Find ideas for your next business or side project
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
Brightidea - With over 2 million users worldwide and $15+ billion in recorded business impact, Brightidea is ranked as the #1 Idea Management Platform globally and is the market leader in innovation management.