Languages and Development Environments
- The Linux Documentation Project - "A very long-standing project whose aim is to document all aspects of the GNU/Linux operating system and associated applications software."
- Linux Man Pages
- Linux Shell Scripting
- Windows Reference "Primarily focuses on all windows operating system platforms be it Windows Server 2008, 2003 & 2000 operating systems for the Server platforms or Windows Vista, Windows XP or Windows 2000 workstation, Home editions."