To make it possible to provide other services even at the time of executing an online game and to communicate with a player receiving the other services in an online game space. Each game terminal receives comics distributions from a comics server and music distributions from a music server, even while executing the online game over its own browser. The game server administers the game participation of each game terminal and the utilization of various services (e.g., comics distributions, music distributions, mails or chats) by using a service utilization database. The game players can communicate with each other in the game space by the knock function in accordance with the service utilizations under the control of the game server.