Xfire

This communication utility through messages is especially designed for those people who like playing on line for many hours.

So you will see when your contacts are plying, which games are playing, which server they are using, and what is more, you will be able to join the game just by making a click

It also comes with support for those well-known games such as World of Warcraft, Age of Empires, Battlefield 1942, Call of Duty, Civilization III, Diablo II, Counter-Strike, FIFA, Halo, Ghost Recon, Halo, UT, Warcraft, Wolfenstein, etc.