Neil Roseman

Techniques are described for facilitating transactions involving items and users in various ways. In some situations, item transactions are coordinated by an automated Item Transaction (or "IT") system provided via one or more computing systems, such that users of the IT system who have available items are matched with other users of the IT system who desire those items. The types of items being involved in transactions via the IT system may vary, and in some situations may include items such… Show more

Techniques are described for facilitating transactions involving items and users in various ways. In some situations, item transactions are coordinated by an automated Item Transaction (or "IT") system provided via one or more computing systems, such that users of the IT system who have available items are matched with other users of the IT system who desire those items. The types of items being involved in transactions via the IT system may vary, and in some situations may include items such as music CDs, video DVDs, computer games, computer software, etc. The operation of the IT system may be enhanced in various ways via interactions with one or more external item marketplaces, such as by automatically obtaining and using information related to users of the IT system from those marketplaces, and/or by acquiring additional items from those marketplaces for use by the IT system. Show less

A method and system for authenticating users while conducting an auction via a computer system. The system can automatically authenticate users who have previously registered with the auction system and who have enabled automatic authentication. When a user is registered, the system may store authentication information in a cookie on the user's computer. When the user decides to perform a transaction (e.g., list item auction or place a bid for an item) that requires authentication, the system… Show more

A method and system for authenticating users while conducting an auction via a computer system. The system can automatically authenticate users who have previously registered with the auction system and who have enabled automatic authentication. When a user is registered, the system may store authentication information in a cookie on the user's computer. When the user decides to perform a transaction (e.g., list item auction or place a bid for an item) that requires authentication, the system retrieves the stored authentication information. If automatic authentication is enabled, then the system allows the transaction to proceed without manual authentication. If, however, automatic authentication is not enabled or the system does not recognize the stored authentication information, then the system requests manual authentication. The use of automatic authentication allows a user to enter information relating to a transaction without manually entering any identification information. The system also defers manual authentication until a transaction is ready to proceed. Show less

An electronic marketplace system embodies various inventions for assisting users in listing products for sale, locating the listings for a product, and performing related actions. A user wishing to sell a product can browse to an existing description of the product in an electronic catalog and then select an option to create a corresponding listing. If the user previously purchased the product via the system, the user may alternatively select the product from a personal purchase history. To… Show more

An electronic marketplace system embodies various inventions for assisting users in listing products for sale, locating the listings for a product, and performing related actions. A user wishing to sell a product can browse to an existing description of the product in an electronic catalog and then select an option to create a corresponding listing. If the user previously purchased the product via the system, the user may alternatively select the product from a personal purchase history. To create the listing for the selected product, the user preferably specifies the product's condition and a selling price. The pending listings for a product are preferably displayed or summarized on the product's detail page in the catalog. When no such listings exist, an option to preorder the product from an unspecified seller may be provided. In one embodiment, the electronic catalog also serves as a retail sales catalog of a merchant. Show less