Webspiration

Webspiration is a free Web 2 tool that allows you to create online mind maps. These mind maps are easy to use in groups and the tool also has a chat function that allows students to remotely discuss aspects of the mind map before committing themselves online.

The other really interesting function is the Outline View. Once you have developed your mind map you can create an outline for a piece of writing with the simple click of a button. This is what puts this tool a level above many other online mind mapping tools.

http://www.mywebspiration.com/