PETILLANT !

http://www.petillant.com/ is a website dealing with mindmapping.
You can find some very interesting stuff there : mindmaps and others.
With the tablet PC coming and softs like " Microsoft Research Inkseine" mindmapping will be on the cutting edge of pro tools (hu ! for geeks and other nerds maybe !)

By the way... it's a french speaking site ! Sorry M. Teacher.