Linux is an open-source project that presents a Unix-type operating system. Developed under the GNU General Public License, it's source codes is available for anyone to use and modify.
For more information on Linux, take a look at:
- Linux.org -- Provides information on Linux as well as acting as an advocate for Linux.
- Kernel.org -- A repository of archives for the Linux kernel source code.
- TLDP.org -- The Linux Documentation Project contains many how to's, guides and FAQs.
- GNU.org -- Home page for the GNU project.
- LinuxLinks.com -- A web portal with lots of relevant Linux information and links.
- Linux Articles -- A web with articles regarding your everyday work with Linux as well as interesting articles and tips.