Internet Operating System Counter Statistics on Internet OS use, WWW, FTP, and News servers. Over 940,000 hosts checked in this 1999 survey.
OSNews: Exploring the Future of Computing Weblog style online magazine on operating systems and computing environments. Daily updates, reader forum with many comments.
Convergence International 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.
Operating System Growing article, with links to many related topics. Wikipedia.