Mass media refers to the technologies used as channels for a small group of people to communicate with a larger number of people. The concept was first addressed during the Progressive Era of the 1920s, as a response to new opportunities for elites to reach large audiences via the mass media of the time: newspapers, radio, and film. Indeed, the three forms of traditional mass media today are still the same: print (newspapers, books, magazines), broadcast (television, radio), and cinema (movies and documentaries). More