An example of a mindmap generated with Freemind

Freemind is a freeware mindmapping tool. It generates mindmaps for studies, which I am doing now for my revision; keeping track of tasks at hand (although some say that it is more useful if used in along with Outlook) and many other stuff. The software helps me keep my mind clear of what is important in the notes, even though the notes are already the abridged version of the textbooks. I have yet to play around with the full functionality of the software, but from my 2 days worth of experience, use it!