An irc channel. Sweet!
Actually irc and instant messaging (ICQ or AIM) are the two internet things that an atari ST can do very well, so hopefully you could also join from that.
ircnet.eversible.com is an open access server so you can join from everywhere.
Felix qui potuit rerum cognoscere causas.My Atari blog
STOT Email address: stot(NoSPAM)atari(DOT)org