I may be coming at this late in the game, but a recent article I read online opened my eyes to the whole digital coupon phenomenon. This is the use of the internet to offer deep discounted coupons and vouchers for products and services to a ton of potential customers.
My coming in late to the game had nothing to do with not knowing what digital coupons were; it was more like I tried one of the services, had a bad experience, and moved on — that may have been a mistake.