Information offer system, information offer mediation server and information offer server

摘要

The information offer server 30A and the like offering information to a certain area, the terminal unit which requires treatment such as information retrieval service inside that area (20), searching the information inside the said area, the occasion where it offers, acquiring the information of the announcement and the like which the inside of the other area is related, try to be able to offer. The index which is granted to search term and search term (ID) correspondence attaching the area whose relation is deep in search term TB and the search term which are stored to the index, the terminal unit (20) information of the announcement which from the search term which is specified specifying, it decides the related area, from the information offer server of the related area, the association and others re is in search term acquiring the information of announcement, the terminal unit (20) with the search result acquires in deck from the other area is offered making use of with the area information TB which you store.