Man, a lot of these are good. I looked at the Mind Maple demo and it looks very nice, but there are several of these that are extremely similar and all very nice. Like MindManager...I like using this occasionally for more formal looking mindmaps...Mind Maple looks to be about 90% the same thing.
The Brain is also something I've tried, very fun program. But it didn't end up grabbing me and I lost interest. I'd use the Brain if I were to give a presentation about some convoluted ideas or something because it would be a really great visual. But for productive day to day work, I find it not as practical.
My problem with this category of software called "Mind Maps" or whatever...my main problem is that it needs one single center node/idea. Everything branches off a center point. It just seems too rigid for me, but I may be confusing brainstorming with mind maps. That center thing is the difference.
So why am I so high on Scapple? In Scapple, there is no center. You just put bubbles and text anywhere and connect them with lines. No organization, no outline or hierarchy. And it's simple...click and type. The disadvantage compared to other mind map software is that it doesn't have any fancy features like linking to documents, or embedding stuff, sophisticated visual options.
Again, I seem to have a personal confusion regarding the definition of mind map. What is that? A brainstorm? It seems to imply a center, that's all i know. the Brain is probably the most "mind map" thing I've found in the way it presents information (similar to how we think through connections). But scapple is the same with a more simple format. I like it better in that I can place things on the screen as i please, I don't have to fiddle around with the Brain's weird 3D space-universe.
mind map, brainstorm, flowchart, outline.