When users click the peeq button to discover the price of an item, the price drops, as it does every time someone clicks the button. However, once a customer purchases the item, all discounting stops.
Smart Twitter promoted ad execution. Media Temple's servers went down so their competitor bought up Promoted Tweets and offered discounts to new users.
Huggies coupon execution. Participants choose between the $1.50 discount that requires no DWOM, or getting $3 off for telling 3 friends about the deal via FB, IM, or email.