Xmind - Xmind is a brainstorming and mind mapping application.
Wildcard - Discover, connect and meet people at communities
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
GetReal - Meet new people, in person
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Event Hunt - Startups and Tech Events Curated By Locals