VirtuaWin is an Open Source, virtual desktop manager for Windows which can organize applications over several "virtual" desktops. For example if you use two virtual desktops you can put a Web browser on desk 1 and by using a desktop manager "switch away" the Web browser and it will seem like you have a new empty workspace (desk 2) to put another application/applications on. The program supports up to 20 desktops, configurable key/mouse control, user defined icons, modules for additional features, and much more.
