Oh... I don't think I ever responded to yesterday's Topic of the Day...
Alas, I really don't remember the specifics of my first internet experiences.  I was with Prodigy for a while, then switched to AOL somewhere along the line.  I did subscribe to rec.arts.theater.musicals for a few months, but there were too many fluff posts about Les Miz and Phantom for my taste.  I still subscribe to the Sondheim listserv, and will go through phases where I go into posting mode there - but it's been a while.  And I guess that's about it for now.