IRC Channel
We have an IRC (click here if you don't know what IRC is) channel on freenode that gets some traffic. There's a fair amount of development talk there, but there's plenty more to be had.
Joining the IRC Channel
Pick your favorite IRC client and connect to freenode. You can connect to the server irc.freenode.net, then join #armagetron using the user interface of your IRC client or the command "/join #armagetron"
Alternatively use an easy web interface such as Freenode's.
Once there, you'll find plenty to talk about, I'm sure. There is one thing you should not do, however: enter the channel, say "hi!", maybe ask a question, and leave after a minute of getting no response. If there is no discussion currently going on, everyone has their chat windows in the background and simply won't notice you in time. Have some patience.
