Sometimes Facebook, Myspace, Bebo, Orkut and OpenSocial just aren't enough. Too much real world stuff, not enough gamerscore bragging.
Enter Raptr - a new social network for gamers founded by Dennis 'Thresh' Fong (he had to do something with all that prize money) that offers a way of tracking your friends and sharing what you are in to on several popular games networks.
Once you have signed in and chosen a nick, you can enter your IDs on Xbox Live, PSN, World of Warcraft, Steam and others, then start entering the games in your collection.
Where it can, Raptr will pull data from your various networks and update your profile with a list of your current games, achievements and the like. There are plugins for displaying your data on Facebook et al too, of course.
A free client for PC or Mac will display and update data from you and your friends in real time as well as suck data from any games you play on your box — less of an issue for most Mac geeks, presumably.