| 摘要 |
A community server of the present invention includes a monitor that monitors communication states of users, and a controller, in a case where users who previously communicate with each other but who are not linked with each other after the previous communication, that encourages each user to communicate with the counterpart user after passage of a first period since end of the previous communication between the users, and that links the users with each other if the users subsequently communicate with each other. |
