Value-added information is generated by collecting information relating to apparatuses from a plurality of users, and service is automatically and adaptively provided in a manner that satisfies each user's own preference.Since a second electronic apparatus of a given user is controlled based on control information of a second electronic apparatus of another user to which first electronic apparatus information of the user is similar, electronic apparatus control service is performed in a manner adaptively matching preference of the user without complex signal processing such as user preference analysis. The electronic apparatus of the user is controlled based electronic apparatus information of the similar user with whom the user shares activity information such as transfer and purchases of apparatuses in common, electronic apparatus control service is performed in a manner adaptively matching preference of the user without complex signal processing such as user preference analysis.