It did not take long for Steam Broadcasting to make it out of beta. Valve has made the feature official with the latest update of Steam so now you are easily able to broadcast your gaming skills to your friends.
You can now go into your Steam settings and enable broadcasting. This will allow your gameplay to be broadcasted to your friends when you start gaming. We will see if this will actually become a popular alternative and competitor to online game streaming service Twitch.
Source: Joystiq | News Archive