Wiki research in mindmap format... nice!

I've always been a fan of the concept of mind mapping, but for the most part, for me, it has remained in the realm of pencil and paper. I've found a few good tools, but just haven't put enough effort into any of them thus far.

Will Simpson posts about a great online app called WikiMindMap which pulls the search results for any term from wikipedia.org and displays it in a mindmap format. The output is great for this type of data since it let's you expand different nodes to effectively drill down without the clutter.

I've seen a few posts in my feed list about mind mapping in the past. What tools are people using to do this stuff on the desktop? Leave a comment and let me know.