To provide an information provision system intermediating information according to a search demand of a user, appropriately evaluating an access to an information intermediation server, and giving an incentive.

A service provision server 100 provides information related to articles to the information intermediation server 200 and stores it in an information storage part 210 (1). An information intermediation part 220 receives an information search demand from a user's terminal 300 (2), searches the information from the information storage part 210 (3), intermediates to the user's terminal 300 (4), and delivers the contents of the information search demand and the information intermediation to a user's access information control part 230 (5). An evaluation part 231 prepares the user's access information to the information intermediation server 200 and conveys it to the service provision server (6). An incentive adjustment part 120 adjusts the incentive according to the user's access information (7), and an execution part 130 receives a request of the user by the provision of the user's ID information (8) and executes the processing according to the incentive content (9).