Abstract: A multi-transaction system comprises a transaction module configured to access a set of transaction systems to obtain transaction information to enable procurement of an item. The set of transaction systems includes an automated trading system configured to enable a user to receive the item in a trade for at least one other item associated with the user, and further includes at least one of an auction system configured to enable the user to electronically bid on the item and an online sales system configured to enable the user to purchase the item. A method is provided for performing corresponding functions.

Abstract: A multi-transaction system comprises a transaction module configured to access a set of transaction systems to obtain transaction information to enable procurement of an item. The set of transaction systems includes an automated trading system configured to enable a user to receive the item in a trade for at least one other item associated with the user, and further includes at least one of an auction system configured to enable the user to electronically bid on the item and an online sales system configured to enable the user to purchase the item. A method is provided for performing corresponding functions.

Abstract: A multi-transaction system comprises a transaction module configured to access a set of transaction systems to obtain transaction information to enable procurement of an item. The set of transaction systems includes an automated trading system configured to enable a user to receive the item in a trade for at least one other item associated with the user, and further includes at least one of an auction system configured to enable the user to electronically bid on the item and an online sales system configured to enable the user to purchase the item. A method is provided for performing corresponding functions.

Abstract: An automated trading system and method may comprise a storage system for storing a set of data representing users and an associated tradable items, a trade module for determining at least one trade among at least two users using the data representing the tradable items, and an interface for transmitting a signal representing at least a portion of the trade.

Abstract: User interactive systems and methods are provided for using an automated trading system that can comprise a storage system for storing a set of data representing users and an associated tradable items, a trade module for determining at least one trade among at least two users using the data representing the tradable items, and an interface for transmitting a signal representing at least a portion of the trade.

Abstract: A multi-transaction system comprises a transaction module configured to access a set of transaction systems to obtain transaction information to enable procurement of an item. The set of transaction systems includes an automated trading system configured to enable a user to receive the item in a trade for at least one other item associated with the user, and further includes at least one of an auction system configured to enable the user to electronically bid on the item and an online sales system configured to enable the user to purchase the item. A method is provided for performing corresponding functions.

Abstract: A marketing system and method for use with an automated trading system are provided. A set of databases is configured to store data representing a plurality of users, the data including a set of interest information and a set of user information comprising data representing a set of tradable items. A set of ads is available from at least one of a marketing database and a set of ad sources. And ads from the set of ads are directed to the plurality of users, wherein ads directed to a user are chosen based on interest information associated with the user.

Abstract: A trading database for use with an automated trading system may be configured for providing a set of data structures and storing a set of data representing users and associated tradable items and data representative of planned, pending, and executed trades.

Abstract: An electronic notification system includes a storage system configured to store information representing a plurality of users and a plurality of tradable items associated with the plurality of users; a trade module configured to access the storage system to determine at least one trade among at least two users from the plurality of users, wherein the trade can be determined based on a set of have items and a set of want items associated with each of the at least two users; a communication module configured to couple to the trade module and to transmit a signal representing at least a portion of the trade; and a notification module configured to selectively generate and send via the communication module an electronic notification to one or more users from the plurality of users.