Xmind - Xmind is a brainstorming and mind mapping application.

Note Anywhere - Leave sticky notes on tabs in Chrome

MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.

Walling for Windows - Visual walls for your ideas and projects. Now on Windows.

MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

Thought Train - Stop using sticky notes to remember what you're doing 📒 🚫