"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/

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

Linux.com A Linux portal and directory. http://www.linux.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/

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

Commercial Operating System Comparison International Data Corp. (IDC) white paper. http://www.openvms.digital.com/openvms/whitepapers/cosc/cosc.html