The system according to an embodiment of the present invention may more appropriately provide recommendation information of contents based on use status of the contents by a plurality of users. The system includes a service provision control unit for controlling provision of services, an information storage unit for storing information, a recommended content selection unit for selecting recommended games based on closeness information between the users and use degree information by the users for each game, a recommended content information sending unit for sending content recommendation information including information specifying recommended games, a recommended user selection unit for selecting recommended users based on the use degree information, a recommended user information sending unit for user recommendation information including information specifying the recommended users, and a relationship request information sending unit for sending relationship request information in response to a request for setting a friend with the recommended users.