Perhaps you have a thought you'd like to keep around? Maybe it's linked to several other thoughts? MindNode can help you out. Designed by Markus Mueller, this mindmapping application helps users develop thoughts new and old, and visitors can use them for to-do lists, brainstorming, and project management. The program can be customized to constrain node width and size, and also create multiple "mind-maps" on one canvas. This version is compatible with computers running Mac OS X 10.5 and newer.