Come on. Online coupons. Groupon is the hype of boo.com, webvan, and Kozmo.com all rolled into one, with greedy investors hoping they can make a quick buck before people realized what happened.
Groupon is a glorified wordpress blog with 10,000 sales reps propping up the fake market with unsustainable or warranted demand. It's like watching Boiler Room play out in real life. There is no business process innovation here or technical innovation. The only innovation here is using huge marketing dollars to perpetuate a pump and dump ponzi scheme long enough for an IPO. Oh wait, that's not innovative, they did the same thing with dozens of companies a decade ago just before the first web bubble burst.