Guide to window managers for old computers with low memory

X Windows Windows managers for old computers with low memory or if you just want to run a lite weight system

All that are above, plus:
 * Enlightenment
 * xfce


 * WindowMaker
 * ROX


 * icewm
 * ion3


 * ratpoison
 * badwm
 * sWM


 * flwm
 * Fluxbox / blackbox