From what I hear, Groupon doesn't do a lot of their engineering in house. Buying a company that can make their site into more of a 'local destination' like Yelp

From what I hear, Groupon doesn't do a lot of their engineering in house. Buying a company that can make their site into more of a 'local destination' like Yelp/Hotpot/CitySearch makes a lot of sense. And they can probably get them for a much cheaper price pre-launch.