An information network system includes a massage machine and a communication server. The massage machine contains: a treatment portion configured to treat a subject, a control unit configured to control the treatment portion, an operation unit configured to operate the treatment portion via the control unit, and a new arrival notification portion. The communication server is connected to the control unit via a communication network, the communication server is configured to emit an information related to the massage machine. The control unit is configured to cause the new arrival notification portion to issue a notification upon a receipt of the information.