Brainstorming Without a Whiteboard

This is a great piece of software for generating or saving brainstorming sessions. It has multiple templates and samples for inspiration, and works with most of the ConceptDraw solutions, giving you a huge range of options for graphics to make professional quality diagrams. For my use, the best part is the basic interface when you open a new map, it lets you start typing and adding new branches to your ideas through a simple tab/shift-tab. When you're not around a whiteboard, this is the next best thing. I often will not even bother saving the maps I create, it just gives me a place to work through ideas and their relationships.