I highly suggest to any gamer who plays PC games, whether they be single player or multi to get Xfire! It's a pretty nifty program, like Peach said it tracks all of your gaming hours which is awesome itself, and it also acts as a chat program too. You can have all your friends on your list and can join their games if they're playing multiplayer.
For multiplayer games, you can have your own favourites list, and it makes it REALLY easy to join into the server right away instead of having to manually open up your games and find the server. It also tracks the servers you have recently played in, which again makes it really easy to replay in them.
Another really awesome thing about it is that you can chat to your buds while in the middle of playing your games without having to exit or minimize the game.
I think it's a really great program and more girls from here should own!!
My user name is Jinxxed13, look me up and add me if you have Xfire. Just let me know you're from the guild in the invite.
You can get Xfire here:
http://www.xfire.com/