20 Year Usenet Timeline

http://www.google.com/googlegroups/archive_announce_20.html

Google has fully integrated the past 20 years of Usenet archives into Google Groups, which now offers access to more than 800 million messages dating back to 1981. This is by far the most complete collection of Usenet articles ever assembled and a fascinating first-hand historical account.
We compiled some especially memorable articles and threads in the timeline below. For example, read Tim Berners-Lee's announcement of what became the World Wide Web or Linus Torvalds' post about his "pet project". You can find more in-depth information about the archive here.

slashdot
http://slashdot.org/article.pl?sid=05/01/10/0220230
Inside Google
http://google.blognewschannel.com/index.php/archives/2005/01/10/google-releases-list-of-historic-moments-on-usenet/