- It is free
- You can share your maps with anyone else ( they don't need to buy and proprietary software to see your map)
- You can embed weblinks into it
- It is supported by Moodle.
You can see freemind in action http://www.youtube.com/watch?v=5uXiLOKy-qw&feature=related
For more information and free download go to http://freemind.sourceforge.net/wiki/index.php/Main_Page