Abstract: The purpose of the present invention is to sway a user to increase purchase desire, by constructing a system that successively links related information to one piece of information, thereby making it easy to grasp related information. In the present invention, a reception unit 101 receives an evaluation of a user U2 with respect to content C1 recommended by a user U1, and a recommendation by the user U2 about content C2 determined by the user U2 to be related to the content C1. A management unit 102 manages user information of the user U2 in association with content information of the content C1 and content information of the content C2. When a user U3 accesses the content C1, a presentation unit 103 presents to the user U3, on the basis of the mutual correspondence relationship of these pieces of information, at least one piece of information from among these pieces of information. Due to the foregoing, the present invention solves the abovementioned problem.

Abstract: The purpose of the present invention is to sway a user to increase purchase desire, by constructing a system that successively links related information to one piece of information, thereby making it easy to grasp related information. In the present invention, a reception unit 101 receives an evaluation of a user U2 with respect to content C1 recommended by a user U1, and a recommendation by the user U2 about content C2 determined by the user U2 to be related to the content C1. A management unit 102 manages user information of the user U2 in association with content information of the content C1 and content information of the content C2. When a user U3 accesses the content C1, a presentation unit 103 presents to the user U3, on the basis of the mutual correspondence relationship of these pieces of information, at least one piece of information from among these pieces of information. Due to the foregoing, the present invention solves the abovementioned problem.