Massive LivingSocial Deal for Amazon Gift Card Left Some Angry

A massively successful promotion by "deal-of-the day" website LivingSocial left a bad taste in the mouth of many consumers who have been complaining they were unfairly shut out of the bargain.

Last week's daily deal on LivingSocial offered users a $20 Amazon gift card for just $10, while those who convinced three Facebook "friends" to sign up for the deal were promised free gift cards.

Although Amazon lost money on the deal, it also drove tons of traffic toward a site in which it recently invested $175 million. The promotion unleashed an online buying frenzy, as consumers scooped up 1,378,938 million Amazon cards in 24 hours, a rate of 7,600 an hour, or 80 per second, according to CNN.