newsgroup
newsgroup: n. [Usenet] One of Usenet's huge collection of
topic groups or fora. Usenet groups can be `unmoderated' (anyone
can post) or `moderated' (submissions are automatically directed to
a moderator, who edits or filters and then posts the results). Some
newsgroups have parallel mailing lists for Internet people with no
netnews access, with postings to the group automatically propagated
to the list and vice versa. Some moderated groups (especially those
which are actually gatewayed Internet mailing lists) are distributed
as `digests', with groups of postings periodically collected into a
single large posting with an index.
Among the best-known are comp.lang.c (the C-language forum),
comp.arch (on computer architectures), comp.unix.wizards (for Unix
wizards), rec.arts.sf.written and siblings (for science-fiction
fans), and talk.politics.misc (miscellaneous political discussions
and flamage).