The document discusses Tomi Ahonen's work analyzing the seven mass media and identifying the unique benefits of mobile/cellular networks as the seventh mass medium. It provides examples of real mobile services and discusses each of the seven benefits Ahonen identified for mobile: 1) It is the first personal mass medium, 2) It is permanently connected, 3) It is always carried, 4) It has a built-in payment system, 5) It is available during creative impulses, 6) It can accurately measure audiences, and 7) It brings people together. The document examines several case studies that illustrate each of these benefits.