MG has a new chat room right here on the site. To use it, click the "Live Chat" link in the main menu. Note that if you have any sort of pop-up blocker installed, you will want to configure it to allow pop-ups from "multiplayergamers.com" or you will not be able to join the chat.

Currently, there's only one room configured for General Chat. Should enough requests come in, I'll create other rooms as well.