"After 3000 years of explosion, by means of fragmentary and mechanical technologies, the Western world is imploding. During the mechanical ages we had extended our bodies in space. Today, after more than a century of electric technology, we have extended our central nervous system itself in a global embrace, abolishing both space and time as far as out planet is concerned. Rapidly, we approach the final phase of the extensions of man — the technological simulation of consciousness, when the creative process of knowing will be collectively and corporately extended to the whole of human society, much as we have extended our sense and our nerves by the various media." — Marshall McLuhan, The Medium is the Message (1964)
Marshall McLuhan is one of the few media literacy theorists with a well kept online presence. marshallmcluhan.com