I’m an avid user of mind maps, and recently found a google chrome app, that also is an iPhone and Droid app which allows you to create and share Mind Maps.
I’ve used xFreeMind for a long time, along with so many others, however, MindMesiter.com, is far, far, far superior,.. it’s everywhere with me, it’s something I can share with clients or work with employees on.
Enjoy