Bernardo A. Huberman has been, so far, the most impressive speaking in a very impressive series. and, lucky you, they just just posted the video of his talk.
The web mediates interactions among distant people on a scale that was never possible in the physical world. From vast social networks, to grass-root amateur creativity and the creation of encyclopedic knowledge, a collective intelligence is at work in ways that differ from traditional communities in style, intensity and effectiveness of interaction. I will present the results of several studies of social dynamics in the web, as well as mechanisms we have designed to access this collective intelligence while improving users experiences with digital content.