LifeDigger - Evolving personal knowledge base
MindNode - Delightful Mind Mapping for your Mac, iPad and iPhone. MacCapture Your Thoughts. Any idea starts with a loose collection of .
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Xmind - Xmind is a brainstorming and mind mapping application.
TheBrain - TheBrain: The Ultimate Digital Memory
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.