Noun
newsgroup (plural newsgroups)
A repository on a computer network where people can post messages, usually about a single subject.
A January 1995 precursory discussion thread, on the usenet newsgroup "comp. Source: Internet
A troll can disrupt the discussion on a newsgroup, disseminate bad advice, and damage the feeling of trust in the newsgroup community. Source: Internet
Donovan, p.129 Discussing, tracking, and analyzing urban legends is the topic of the Usenet newsgroup, alt. Source: Internet
A message sent for publication on a newsgroup is called a "post". Source: Internet
But back then, I had no clue how to post anything on a newsgroup, and didn't even have a clear idea what a newsgroup was." Source: Internet
Different servers will have different retention times for the same newsgroup; some may keep posts for as little as one or two weeks, others may hold them for many months. Source: Internet