Mindjet MindManager for Groove
by Volker Weber
Mindjet's MindManager for Groove 2.0 Preview Edition (what a name) is a free tool that has been around since Groove 2.0 has been launched. It does not have all the features of the "regular" MindManager 2002 product, but it has exactly the features that I need. Add the benefit, that Groove replicates the data across all your machines and helps you collaborate with other people. Neat stuff.