Web 3.0 - a 15 minute documentary by Kate Ray

Web 3.0 from Kate Ray on Vimeo.

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This came via OpenCalais,  who call it a ' dynamic and thought-provoking video that breaks down core concepts of the so-called 'Web 3.0' and Semantic Web movements, featuring interviews with Tim Berners-Lee, David Weinberger, Clay Shirky and more.