AfterStep
Window Managers
AfterStep is a window manager for the Unix X Window System. Originally based on the look and feel of the NeXTStep interface, it provides end users with a consistent, clean, and elegant desktop. The goal of AfterStep development is to provide for flexibility of desktop configuration, improving aestetics, and efficient use of system resources.
Fvwm was designed to minimize memory consumption, provide a 3-D look (similar to from Motif’s mwm) and provide a simple virtual desktop. Functionality can be enhanced by the use of various modules.
Gnome is Free Software and part of the GNU project, dedicated to giving users and developers the ultimate level of control over their desktops, their software, and their data.