Abstract: A first user, second user, and third user are registered. Names of a first, second, and third item are stored a website for the first, second, and third users. The items can be tangible items or intangible items. The first user requests the second item. A first credit is removed from the first user and a second credit is stored for the second user when the first user receives the second item. The second user requests the third item. The second credit is removed from the second user and a third credit is stored for the third user when the second user receives the third item. The first credit, the second credit, and the third credit each represents a right to request a future swappable intangible item for the equivalent value of at least one previously swapped intangible item.

Abstract: A first user, second user, and third user are registered. Names of a first, second, and third item are stored a website for the first, second, and third users. The items can be tangible items or intangible items. The first user requests the second item. A first credit is removed from the first user and a second credit is stored for the second user when the first user receives the second item. The second user requests the third item. The second credit is removed from the second user and a third credit is stored for the third user when the second user receives the third item. The first credit, the second credit, and the third credit each represents a right to request a future swappable tangible or intangible item for the equivalent value of at least one previously swapped tangible or intangible item.

Abstract: A first user, second user, and third user are registered. Names of a first, second, and third item are stored a website for the first, second, and third users. The items can be tangible items or intangible items. The first user requests the second item. A first credit is removed from the first user and a second credit is stored for the second user when the first user receives the second item. The second user requests the third item. The second credit is removed from the second user and a third credit is stored for the third user when the second user receives the third item. The first credit, the second credit, and the third credit each represents a right to request a future swappable tangible or intangible item for the equivalent value of at least one previously swapped tangible or intangible item.

Abstract: A first user, second user, and third user are registered. Names of a first, second, and third item are stored a website for the first, second, and third users. The items can be tangible items or intangible items. The first user requests the second item. A first credit is removed from the first user and a second credit is stored for the second user when the first user receives the second item. The second user requests the third item. The second credit is removed from the second user and a third credit is stored for the third user when the second user receives the third item. The first credit, the second credit, and the third credit each represents a right to request a future swappable tangible or intangible item for the equivalent value of at least one previously swapped tangible or intangible item.

Abstract: A system and method for an on-line swapping service. The service registers members and allows members to list items that each member is willing to swap in exchange for credits with the service for an item from listed by another member. An example of the items that may be swapped using the swapping service is books, such as paperback books. To facilitate delivery through the mail of an item from one member to another member, a printable mailing wrapper is created by the system with the appropriate destination address. The system emails, downloads or otherwise sends the mailing wrapper to the member who is in position of the item to be shipped. That member simply prints the mailing wrapper on a standard printer, and wraps it around the item to be shipped via standard postal services.