The document discusses the evolution of traditional media to new media through the theories of Marshall McLuhan. It outlines McLuhan's concept of "hot" and "cold" media, and describes various ages throughout history defined by dominant forms of media - from the tribal age dominated by hearing, to the print age defined by the printing press, to the electronic age of the telegraph and McLuhan's "global village". It then discusses categories of new media including interpersonal communication, interactive play, information search, and collective participatory media. Finally, it contrasts features of traditional versus new media.