This article is from the Amiga CD32 FAQ, by Stuart Tomlinson with numerous contributions by others.
A: Two... comp.sys.amiga.cd32 Using the CD32 as a slave drive. Add-ons for the CD32 (eg. FMV addition). Technical talk about the CD32. Serious issues for the CD32. rec.games.video.cd32 Games on the CD32. People's opinions about games. Hints and tips for games. Rumours and lists of new/future games.
If your site doesn't carry the groups, ask your system admin.