Re:Newsgroups and the Internet Archive: I Made a Difference
by Steuard on Saturday March 24, 2018 @09:06PM
(#16670011)
Right: As I said earlier, the list in this archive includes rec.humor.funny but not rec.arts.books.tolkien. (And I seem to recall that the alt.* hierarchy was a little less broadly propagated, which might possibly be related to why it wasn't included here.)
So you can go to https://archive.org/download/gna-rec and see all archived groups that are in the rec hierarchy.