"Linux was invented here"
   University of Helsinki - Department of Computer Science. Information about Linux and get the latest kernel versions and recent Linux kernel mailing list archives.
   http://www.cs.helsinki.fi/linux/

FreeOS
   Provides articles, documentation, links to software, and news about Linux and other operating systems.
   http://www.freeos.com/

Linux International
   Non-profit association of groups, corporations, and others that work toward promoting and helping direct the growth of the Linux operating system and community.
   http://li.org/

Linux.com
   A portal from SourceForge offering news, articles, and a "how to" knowledgebase.
   http://www.linux.com/

The Linux Counter
   Get yourself and your computer counted among the Linux users.
   http://counter.li.org/

What Is...Linux?
   Definition of Linux and description of its history, relation to GNU and other UNIX systems, and links to related sites.
   http://whatis.techtarget.com/definition/0,289893,sid9_gci212482,00.html