Share 'E-Brainstorming Tools'

How about folks posting innovative software for brainstorming? I just ran across the free Microsoft program called Stickysorter. "Description: StickySorter is a free sticky notes program that introduces a number of innovations such as the ability to cluster stickies in groups, the ability to define fields, the ability to import and save notes into CSV, the use of the front and back of the stick…