A control method for a home appliance using a network in a network system comprising a plurality of home appliances having data output systems, and a server system for communicating data with the home appliance, the control method comprising:
- placing the home appliance where it will be used by a user,
- inputting on the home appliance side usage data indicative of consumption of product used with the home appliance in conjunction with home appliance operation,
- sending the input product information via the network to the server system,
- receiving advertising information or sales promotion information selected according to the product information and sent from the server system,
- outputting the received information with the data output system of the home appliance, the information received from the server system being advertising information or sales promotion information selected according to the home appliance user lifestyle information, which is identified from the information received by the server system from the home appliance, and
- providing advertising information or sales promotion information according to the lifestyle information for the home appliance.