Xmind - Xmind is a brainstorming and mind mapping application.
Growl for Windows - Growl for Windows is a Windows-compatible version of https://alternativeto.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
Notifu - Notifu, a free open source pop-up balloon utility