Amazon is having a full day of discounts on video games today, probably to match their announcement of Amazon Instant video on the XBOX360 (it was made available to the PS3 one month ago). As I type this, the lightning Deals (limited amount and limited time promotions) already started a dozen hours ago!
The “Deal of The Day” is a 50% discount on the game Prototype 2 for both XBOX360 and PS3. Lightning deals also offer a 75% discount off a WoW expansion (Cataclysm), and the upcoming deal (in a few hours) is a “limited edition RPG bundle [which] is a true collector’s item for the PS3!“.
They also have other offers ad discounts today, such as a discount for preorders on Spec Ops – The line, and other stuff.
You can check the deals below, or directly go to the deals page here.