mBuzz.Net: S Club Forum
Forum about the group, and what the ex-members are doing now.
Yahoo Groups: S Club 7
http://dir.groups.yahoo.com/dir/Music/Genres/Rock_and_Pop/Artists/Complete_Category_Listing/S_Club_7
Listing of fan forums.
Yahoo Groups: S Club Boys
Yahoo club about the boys in S Club 7.
Yahoo! Groups: S Club United Fan club
Pictures and discussion about the group.