I posted before that a list (newsgroups and descriptions) is periodically
posted to news.announce.newgroups. This of course only includes the "big 8"
(comp.*, humanities.*, misc.*, news.*, rec.*, sci.*, soc.*, talk.*) newsgroups.
Let me know if you would like me to forward you a copy of the latest.
To get a list of groups and descriptions from your news server:
telnet news.uni-stuttgart.de 119 > grouplst
list newsgroups
quit
only use your news server instead of news.uni-stuttgart.de.