Mind mapping has always been pushed by professors and business planners as one of the best ways to collaborate on ideas with a group of peers. German company, Codemart, released an on-line mind mapping service called MindMeister earlier this year. MindMeister allows users to create maps in concert with other users allowing for massive brainstorming sessions and a level of interactivity that could never be achieved on a white board. Maps can be printed, shared, or published to a web page with a touch of code. I'm looking forward to using this on a project in the future.