Yes, BBS = Bulletin Board Service. The precursor to forum communities like these, in the days before dial-up Internet service. The biggest local BBS in my hometown (Wichita, KS) had a user base of about 300 or so, and I ran a four-year-long play-by-email (PBeM) game with 6-12 players at any given time. I think about 30 people played in it at one time or another.
I hasten to point out that as many times as Murtagh claimed he was too old for this s***, he stayed in the action.
Oh, and IG = IndustryGothica, who is running a 4e game set in The Witchlight Strand