- Linux.org
- Central source of Linux information.Own description: "Comprehensive information and resources about the Linux Operating System."
- Debian
- Linux distribution.Own description: "Debian GNU/Linux is a free distribution of the GNU/Linux operating system. It is maintained and updated through the work of many users who volunteer their time and effort."
- Gentoo
- Linux distribution optomized for performance and configurability.Own description: "Gentoo Linux -- Gentoo Linux News"
- Red Hat
- Linux distribution.Own description: "Red Hat is the world's leading open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, serve..."
- Ubuntu
- Linux-based operating systemOwn description: "Ubuntu Home Page | Ubuntu"
- Linspire
- Linux distribution.Own description: "Xandros creates Linux operating systems available for home, business and education use. Get a live Linux OS, Linux distribution download, or Linux desktop from Xandros, the easy Linux"
- Mandriva
- Linux distribution. Used to be called Mandrake.Own description: "Mandriva"
- SuSE
- Linux distribution, owned by Novell.Own description: "Linux OS by Novell. SUSE Linux Enterprise is the premier Linux operating system for the enterprise."
- Knoppix
- Linux distribution. CD bootable.Own description: "KNOPPIX - Live Linux Filesystem On CD"
- andLinux
- Ubuntu Linux system running under Windows.Own description: "andLinux.org -- Run Linux natively inside Windows"
- Freesco
- Free router software based on Linux.Own description: "FREESCO Project"
- Freespire
- Community-driven, Debian-based Linux distribution.Own description: "Freespire"
- Security-Enhanced Linux
- by the National Security Agency.Own description: "Security-Enhanced Linux"
- Pocket Linux
- Minimal, one floppy Linux system.Own description: "Official homepage of Pocket Linux project - one floppy linux workstation."