Looking for something to play this weekend? Steam has two full games that are playable until Sunday 9pm for free - Saints Row: The Third as well as Civilization 5.
The Humble Bundle 8 is open for sale! Pay whatever amount you like and receive 5 games from independent developers and the soundtrack associated to the game.
Yesterday blizzard introduced spawning to Starcraft 2, this allows players without Heart of the Swarm to gain temporary access to the game when they join a friend's party who has the full game.