KDE Plasma add-on, that tiles your windows automatically
A healthy, byte-sized window manager
Managing window without a window manager. (59 slocs)
Pioneering Private and Public Cloud Management since 2008
Motif with new non-virtual panner (motif 2.0-2.2)
A Gkrellm2 plugin that sets and clearly indicates the current desktop.
A WinXP replacement - Lubuntu re-mixed with Windows XP appearance
A window manager for X
WorkFlow Plasmoid and KWin Effect for KDE 4