Spinscape: This collaborative idea for mind mapping was just pointed out to me. I am exploring further. I am a long time user of mind mapping for storing and delivering knowledge.
" ... Spinscape is a Web based application you use to find, organize, and share information on any topic. Mind Mappers will be at home with the look, but Spinscape goes much further. Collaborate with people from around the world in real time, visualize mountains of information, and even find stuff and automatically pull it in to Spinscape. ... "