This Altnews site, forums.altnews now has 'Groups' similar to Yahoo Groups and Google Groups...

Each group can have members, and maintains a group home page where members can post into. Posts may be placed into multiple groups (i.e. cross-posting) and individual posts may be shared with non-members or not. Membership to groups may be open, closed, moderated, or invitation only. Add-on modules are available for group image galleries, group calendars, group vocabulary, group stores, etc.