XMIND
XMind is a brainstorming and mind mapping software tool developed by XMind Ltd. of Hong Kong. The program is intended to assist users in capturing ideas, organizing various charts, and share them with collaboration. It supports mind maps, Ishikawa diagrams (also called fishbone diagrams or cause-and-effect diagrams), tree diagrams, organization charts, and spreadsheets. It can be used for knowledge management, meeting minutes, task management, and GTD. XMind can read FreeMind files.
Read more about Xmind.