SpiderScribe is a web app that lets you create free style maps online, connecting text notes, images, files, Google maps, calendar events, etc. and share those maps online.
Check SpiderScribe.net website for more details.
You can check SpiderScribe mind mapping and brainstorming tool at www.SpiderScribe.net.
Search SpiderScribe Blog:
This site rocks the Classic Responsive Skin for Thesis.