WoW Radio encourages you to use IRC to chat with your fellow listeners, and to idle in as well. We use the Massively Multiplayer Online IRC Network (http://www.mmoirc.com). And hang around in the #WoWRadio channel.
If you are using Windows, we recommend mIRC which can be downloaded here. If you are using Mac OSX, please try Colloquy which is available here. You can also choose from one of the other clients listed here. Once you've installed that, connect to irc.mmoirc.com and /join #wowradio. Or use this link if your IRC client supports it #wowradio
To chat instantly, you can use this web chat that runs a java applet in your browser. This will not require you to install Mirc.
