Unix / Linux

• Unix
  Sites, Magazines and Books about Unix.
• Linux
  Sites, News, Magazines, Search, Distribuitions, Kernel, Hardware.
• Unix Flavors
  Sun Solaris/SunOS, Berkeley BSD, IBM AIX, SCO UnixWare, HP-UX.
• X Window System
  X11, XFree86, Motif, GNOME, KDE.
• Software
  Open Source, Repositories and News, Desktop Applications, Shells, VMs, Emulators and Terminals, UNIX/POSIX Tools for Windows, Text Editors, Administrative Tools, Archivers.