PROBLEM TO BE SOLVED : To enable a seller, renter, etc., of real estate items to freely register and publish item information, photographs, room layouts, maps, etc., through personal computer and to easily obtain photographs, maps, etc., when items are retrieved.SOLUTION : The system is constituted in which a database of real estate items is structured, and it is possible to freely retrieve an item on the Internet, and items are published together with photographs. In the system, the seller side of the real estate item can register the item contents, etc., on his or her personal computer screen through the Internet and photographs, room layouts, etc., can be registered on the screen. Further, in the system, a map display system of a map producing company can be reached by clicking on a displayed address for real-estate item retrieval, so that a request for a photograph can be made through an electronic mail function.