World of Goo is an award winning physics based construction game. You can own it for the cheap price of $6.99 right now on Amazon. No details as to how long the promotion will last.

You can currently save 43% on the PS3 version of Eternal Sonata, and 37% on the Xbox 360 version.  A great value for a great RPG.

Every ~2 hours Amazon is posting a new deal for an unknown video game. At the time of this posting De Blob 2 is on sale for every platform that it is available on.

New deals will be posted at 8AM, 11AM, and 2PM PDT.

Amazon is offering Dragon Age 2, which just came out a few weeks ago, for $39.99, which is $20 cheaper than usual.

Dragon Age 2 features the same intense decision making that drove the first game, this time with a more intense combat system and spoken dialogue for your main character.

Amazon is currently offering Portal 2 for a great value. You can get $5 off the price of the game, plus a $20 gift card towards any purchases you make at Amazon (a few exlusions apply, mostly digital media). This is probably one of the best deals you'll find if you're looking to pick this game up new.

UPDATE: In a scramble to compete with the possibility that Portal 2 might launch early, Amazon and BestBuy have set their PC prices to $35.