Services for generation of electronic marketplace listings using personal purchase histories or other indicia of product ownership

An online marketplace system provides various features 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. The system may also proactively send product-specific listing requests to those predicted to own specific products. To create a listing for a 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. In one embodiment, the catalog also servers as a retail sales catalog of an online merchant.