Patent ID: 8554644

Claim:
A method for managing inventory information, comprising: obtaining, from a peer-to-peer marketplace network, a first item from a group consisting of traded items and items obtained for free; obtaining descriptive metadata about the first item; obtaining a point-of-sale transaction notification via a wireless interface of a mobile device from a point-of-sale register, wherein the point-of-sale transaction notification relates to a transaction already completed by the point-of-sale register with respect to purchasing a second item by a user of the mobile device, and wherein the point-of-sale transaction notification comprises descriptive metadata about the second item; updating inventory information of inventory items owned by a household, comprising: automatically adding the first item as part of the inventory information, wherein automatically adding the first item comprises automatically adding the descriptive metadata about the first item to the inventory information via a programmatic link of the peer-to-peer marketplace network; and adding the second item as part of the inventory information, using the mobile device, wherein adding the second item comprises adding the descriptive metadata about the second item to the inventory information based on the point-of-sale transaction notification; receiving a command, in a graphical user interface of the mobile device from the user of the mobile device, to display the updated inventory information, wherein the updated inventory information is used to determine whether to sell at least one of the first item and the second item; displaying the updated inventory information in the graphical user interface of the mobile device responsive to receiving the command; and in response to displaying the updated inventory information resulting in a determination to sell the at least one of the first item and the second item, accessing the peer-to-peer marketplace network using the mobile device; advertising availability of the at least one of the first item and the second item via the programmatic link of the peer-to-peer marketplace network using the descriptive metadata corresponding to the first item or the second item; and removing, in response to selling the at least one of the first item and the second item, a portion of the inventory information corresponding to the first item or the second item.