Master Card has been doing this for a while, and I think they do it better: https://developer.mastercard.com/portal/dashboard.action https://developer.mastercar

Master Card has been doing this for a while, and I think they do it better: https://developer.mastercard.com/portal/dashboard.action https://developer.mastercard.com/portal/dashboard.action They've had hackathons, and they have a few sample ideas. My favorite is checking local restaurants and the zip codes of users. This gives you a listing of places that are popular with locals.