Abstract: When a user requests distribution of event information of a shop from a mobile phone device, an information management server responds to the request and distributes the event information of the shop to the mobile phone device. When a user visits a shop and holds a mobile phone device with an IC tag attached thereto over a shop terminal, communication takes place between the IC tag and an IC tag reader-writer of the shop terminal, and the information management server acquires a shop ID thereof from the shop terminal, and distributes shop information concerning commodities and facilities of the shop to the mobile phone device. The information management server acquires customer/shop visit information, calculates the aggregate, and distributes the aggregate customer/shop visit information to a shop information server owned by an advertiser.