Xmind - Xmind is a brainstorming and mind mapping application.
NewsWhip - Chrome extension that checks how viral your content is
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Promo Self Serve - Launch a promotion across the internet in 90 Seconds
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
SocialRank - Graph search for TWTR. Filter by interests, location, etc