This is yet another excellent TED talk... outlining the growth of open source initiatives as a model for social / business evolution. Yochai Benkler also wisely focuses attention at the end of his talk on the fact that each intellectual property case, each copyright decision, can have a profound impact on the freedom and health of these open models of growth.
The growing tensions between old world models of centralized power and distribution, i.e. Microshaft, record industry, cable and telecom giants vs. linux, skype, bittorrent, etc...