[What follows is another look at periodization in the history of media, adapted only very slightly from a post I sent to the iDC list. It follows directly on the long comment I made to Armin's 45 RPM text, concerning the dialectical transformations of the communicational commodity. The idea is to build momentum for shared investigations into the relations between the technological forms, political-economic functions, expressive uses and oppositional appropriations of communications media. Best to all, BH]
