An interesting tool

While browsing the OpenLearn LearningSpace site I found a new software tool for Visual Thinking: Compendium. I currently use Mind Manager for 'visual thinking' but imho Mind Manager is more suited for supporting project planning and designing documents and presentations than stimulating deep thought about a particular topic you don't yet fully understand. A tool that supports the thinking from not completely understanding to a full cognition of the subject would be very welcome in my collection of software. I'll give it a try.