I've added a chat extension to the Wiki to help with communication during tournaments, and just to give a place to chat live without having to create a new account. You do have to be logged in to your Wiki account to chat or view activity. To access the chat, you can go to http://wiki.armagetronad.org and click "Chat" in the left sidebar.
Direct Link: http://wiki.armagetronad.org/index.php? ... ecial:Chat