Abstract: A method and data processing system provide a competitive marketplace via a network. The method includes identifying a plurality of items corresponding to a request for information about an item in responsive to receiving a request for information about the item. The method includes ranking the plurality of items according to price to form a ranking of the plurality of items. The method includes sending information about the plurality of items including the ranking for display on a display. According to the ranking, items with a lower price are displayed more prominently on the display than items with a higher price. Additionally, the method includes providing information regarding the ranking of at least one item in the plurality items to a seller of the at least one item.