Xmind - Xmind is a brainstorming and mind mapping application.
Visual Understanding Environment - Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
ShuffleInspire - ShuffleInspire seeks to provide inspiration and boost production to builders and makers in the online community.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
Aibase - Creative Data Manager