Patent ID: 8600803

Claim:
A method comprising: providing an online marketplace to merchants of digital goods that may be downloaded from the marketplace to a client computing device for execution by the client device; receiving a request from a party to the marketplace to list a digital good for sale in the marketplace; receiving a primary price for the digital good for sale in the marketplace; offering an opt-in service that includes: determining one or more derivative prices associated with the digital good, wherein the derivative prices are derived from the primary price; collecting the one or more derivative prices from a buyer of the digital good; and paying an amount based on the one or more derivative prices to the party to the marketplace; providing an incentive to the party to accept the offer of the service; and after acceptance of the offer by the party: determining the one or more derivative prices associated with the digital good; collecting the one or more derivative prices from a buyer of the digital good; and paying the amount based on the one or more derivative prices to the party to the marketplace.