While news from Iran streams to the world, Clay Shirky shows how Facebook, Twitter and TXTs help citizens in repressive regimes to report on real news, bypassing censors (however briefly). The end of top-down control of news is changing the nature of politics.
Clay Shirky: Clay Shirky's consulting focuses on the rising usefulness of decentralized technologies such as peer-to-peer, wireless networks, social software and open-source development. New technologies are enabling new kinds of cooperative structures to flourish as a way of getting things done in business, science, the arts and elsewhere, as an alternative to centralized and institutional structures, which he sees as self-limiting. In his writings and speeches he has argued that "a group is its own worst enemy." His clients have included Nokia, the Library of Congress and the BBC. Shirky is an adjunct professor in New York University's graduate Interactive Telecommunications Program, where he teaches course named "Social Weather."
I think he missed Xerography--the equivalent of a printing press.