Google Groups
Google's Usenet discussion archive. Entries date back to the early days of Usenet.
http://groups.google.com/

Reference to Usenet Newsgroups from Tile.net
Usenet newsgroups listed by hierarchy, description, and by index. No newsserver
access. Each newsgroup...
http://www.tile.net/news/

Cyberfiber: Newsgroups Listing
Browse or search this hierarchical topic list of Usenet newsgroups. Does not
provide access to newsgroups.
http://www.cyberfiber.com/

Newsgroups
We provide these newsgroups as a user supported area to exchange information,
... We do not offer any formal support in these newsgroups. ...
http://www.borland.com/newsgroups/

Mozilla Development Forums
At mozilla.org, we host public mailing lists and newsgroups to foster open ...
Please do not mirror our newsgroups elsewhere without providing a disclaimer ...
http://www.mozilla.org/community/developer-forums.html

Newsgroup - Wikipedia, the free encyclopedia
There were seven original major hierarchies of usenet newsgroups, ... There are
currently well over 100000 Usenet newsgroups, but only 20000 or so of those ...
http://en.wikipedia.org/wiki/Newsgroup

Newsgroups.com: UNRESTRICTED News Server Access to Usenet
PREMIUM Usenet provider - access to 120000 Newsgroups - Excellent Completion -
Unbeatable Retention - RELIABLE Tech Support.
http://www.newsgroups.com/

www.w3.org/hypertext/DataSources/News/Groups/Overview.html
http://www.w3.org/hypertext/DataSources/News/Groups/Overview.html

BIOSCI/Bionet Newsgroups
Promotes communication between professionals in the biological sciences.
Includes related resource...
http://www.bio.net/

Harley Hahn's Master List of Usenet Newsgroups
Organized by topic (using entire words, not the cryptic abbreviations like "soc"
or "std" sometimes...
http://www.harley.com/usenet/