[ssskai]

Another plus for Google... they could sell the customer analytics to their AdWords customers. For example, using Groupon data, they know that the 50% off Pizza deal was more popular in West LA than in the OC. They could sell this data to Dominos who places AdWords in those two areas, and Dominos would then spend more on OC ads.

Although there might be some privacy laws that are in conflict here, Googs could probably sell the overall data (aka 58% of registered users bought this in West LA, 24% in OC), without giving away customer specifics (aka Bill Smith bought this)

I'm sure there are other ways too Google could capitalize on this.