Maybe you heard about new app discord ( already.
Discord is a browser, desktop client and phone app based service which is basically a mix of TeamSpeak and IRC. Here is little video
I dont found better video but there is basically everything you need to know.
Discord is really very usefull, you can create own network and then text channels you need or voice channels too. Like #support, #music or voice channels #ctf-blue,# ctf-red etc.
It also works when you join the network you are connected 24/7 even when your machine is turned off. So you never miss message fron any channel.
Its really very good software for chatting and interacting with game. And its all FREE!