Google Zavers

Zavers now about a year plus after launch:

About Zavers by Google
Zavers is a fast and easy way to offer the right coupons to the right shoppers, and track  redemption in real time. Shoppers can find  manufacturer discounts on their favorite retailer websites or across the web, and add the digital  coupons to their online accounts. Savings are automatically deducted at checkout when  shoppers swipe their rewards card or type in their phone numbers — no scanning or  sorting necessary.

With Zavers, retailers can reward loyal customers with relevant coupons, extend incentive programs, and speed up settlements. For manufacturers, Zavers provides the ability to manage and track the effectiveness of coupon distributions, giving marketers access to realtime redemption data so  they can tailor and optimize their campaigns  ...  "