Abstract: Disclosed is commercial-information sharing system in which a vendor provides a shopping device to a customer. When the shopping device presents commercial information to the customer that the customer finds interesting, the customer may choose to share the commercial information. The information is sent from the vendor's shopping device to a personal communications device of the customer. The customer then uses his personal communications device to share the information. The vendor may send tracking information along with the commercial information. If someone is interested in the commercial information shared by the original customer and goes to the vendor to, for example, redeem a coupon, the tracking information provides the vendor with important marketing data. The original customer may also share content that he generates and then associates with the commercial information.