Abstract: A service node operates as a dispatch service apparatus. A client node operates as a car navigation apparatus loaded in a vehicle such as a taxi or a delivery truck. In response to a request from the service node, a Web server distributes to the requesting service node via a communication network, position data including the latitude and longitude of the address or location (destination) of an individual or a corporation. The service node distributes to the client node via the communication network, the position data obtained from the Web server, and the client node shows the driver a route from the current position of the client node to a destination by displaying it on a map. Accordingly, the invention effectively combines browser software and mail communication together to simply and efficiently distribute information obtained from a Web server via the Internet.