Desktop Environments

• Common Desktop Environment (CDE)
  Commercial, Motif based
• GNOME
  GTK+ based
• The K Desktop Environment (KDE)
  Qt based
• Unix Desktop Environment (UDE)
  Xlibs based
• XFCE
  xforms based

Fonts

• Jim's Fonts for X
• metalab's (sunsite) archive of fonts for X

Miscellaneous

• X11.ORG
  X news, info about window managers, desktop environments, servers, themes, etc.

Screen Savers

• Xscreensaver
  Plays 80+ root-window graphic demos as a screensaver

Terminals

• aterm
  xterm replacement based on rxvt with AfterStep features
• Eterm
  xterm replacement based on rxvt with Enlightenment features
• rxvt

Themes

• themes.org
  Themes for AfterStep, Blackbox, Enlightenment, FVWM, KDE's kwm, and WindowMaker

Window Managers

• AfterStep
  Originally based on NeXTStep
• Blackbox
  "...sharing no common code with any other window manager (even though the graphics implementation is similar to that of WindowMaker)."
• Enlightenment
  Graphics intensive
• FVWM
  Originally based on twm
• FVWM-95
  A hack of fvwm designed to look like Windblow$ 95.
• GWM
  The X11 Generic Window Manager
• icewm
• kwm (KDE's window manager)
• Macintosh Like Virtual Window Manager (MLVWM)
• Scheme-Configurable Window Manager (SCWM)
  Originally based on fvwm2; based on Guile Scheme
• WindowMaker
  • The Dock App Warehouse
• wm2
  A very basic window manager
• Other Lists:
  • Window Managers for X

X Servers

• Accelerated-X
  Commercial X server
• Metro-X
  Commercial X server
• XFree86
  Free X11 GUI for Intel based Unix systems
• XSuSE
  A small series of X servers based on XFree86 source. These will eventually end up distributed with XFree86 if they aren't already.