Outz has been kind enough to set up a chat room for Obsidian on IRC. I personally prefer the HTML chat client he's offering as it gives me a way to chatter while working. You can find a link to the "official" chat server on the content bar to the left. If you want to connect via an IRC client please feel free to read the following guide Cybervic put together.

http://www.obsidianshard.com/skills/irc.shtml

Hope to see you all in there!