9e2d0a54_Linux_Desktops_Window_Managers__Design_Goals
[Desktop/Window Manager] Blackbox/Fluxbox [Description] Very minimalistic window managers [Based On] Fluxbox is based on Blackbox (it's a fork) [Advantages] Blazingly fast [Disadvantages] Very limited in features, but by design not immaturity [Design Goals] 
Speed and small memory/CPU footprint
PLABO: A Sampling of Linux Desktops/Window Managers
Design Goals