OSNews: Exploring the Future of Computing - http://www.osnews.com/ Weblog style online magazine on operating systems and computing environments. Daily updates, reader forum with many comments.
How Stuff Works: Operating Systems - http://www.howstuffworks.com/operating-system.htm Unbiased enlightening tutorial with impartial description of how OSs work, and many related links.
Convergence International - http://www.convergence.org/ The non-Wintel user group, supporting Acorn, Amiga, Apple, ARM, Be, NCs, PowerPC, Psion, Unix and other alternative operating systems. Services include a non-Wintel news summary.
Internet Operating System Counter - http://www.leb.net/hzo/ioscount/ Statistics on Internet OS use, WWW, FTP, and News servers. Over 940,000 hosts checked in this 1999 survey.
Operating System - http://en.wikipedia.org/wiki/Operating_system Growing article, with links to many related topics. Wikipedia.
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