"Cognitive Surplus", Clay Shirky @ LSE [mp3](richmedia.lse.ac.uk)
richmedia.lse.ac.uk
"Cognitive Surplus", Clay Shirky @ LSE [mp3]
http://richmedia.lse.ac.uk/publicLecturesAndEvents/20100628_1830_cognitiveSurplus.mp3
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http://richmedia.lse.ac.uk/publicLecturesAndEvents/20100628_1830_cognitiveSurplus.mp3
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