Sites which provide indexing, searching, and/or other tools that allow you to more easily locate an existing Usenet newsgroup.
Related categories 1
Google Groups' Directory
Usenet newsgroups and Google Group mailing lists classified by topic, language, region and activity.
Usenet Info Center Launch Pad
Apparently no longer maintained, but of interest for historical reasons. Besides a list of Usenet newsgroups, also contains links to FAQs, newsgroup descriptions, and other Usenet information.
Last update:October 18, 2014 at 12:24:04 UTC