Responding again to Zimon's question about Mindmapping and what it's for.

It all started with note taking and theories about the best methods to do it.

Schools taught Outlining, with roman numerals to emphasize a rigid thought structure.

Computer programmers developed GrandView, a sort of super-outliner.

A business guy named Tony Buzan created Mind Mapping -- It was like outlining but super free-form. It was origionally done on paper with lots of drawing and colored pencils. The idea was to summarize ideas emphasizing the big picture but with enough scope to be as complex as necessary.

Now there are many mindmapping programs.