Stickies - Stickies is a PC utility written to replace Post-It-style notes left stuck to your monitor.
Xmind - Xmind is a brainstorming and mind mapping application.
7 Sticky Notes - Welcome to the 7 Sticky Notes Website! 7 Sticky Notes is a cool 100% free desktop notes software that creates Sticky Notes directly at the Desktop of your computer to help you organizing your everyday tasks and to-do lists.
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
Microsoft Sticky Notes - A brand new Sticky Notes for Windows has arrived!
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.