To provide advertising services to companies which allow them to reach buyers at the point of purchase ie when they are actively considering a purchase of a particular type of product or service Buyers (consumers as well as businesses) are rewarded for providing information on their intent to make a purchase In some cases, they are only rewarded if they later submit a proof of purchase which demonstrates that they were indeed in the market for a certain product or service at the time that they said they were After consumers declare their intent to buy a product or service, advertisers are offered the opportunity of directing lucrative promotions to these consumers These promotions relate to their purchasing intent and will therefore reach them at a time that they are most receptive to them