Favorite talks
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Play
William Kamkwamba: How I harnessed the wind
05:59 Posted: Sep 2009
Views: 1,096,572 | Comments: 244
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Play
Dave Eggers' wish: Once Upon a School
25:35 Posted: Mar 2008
Views: 895,104 | Comments: 116
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Lawrence Lessig: Laws that choke creativity
18:56 Posted: Nov 2007
Views: 1,202,675 | Comments: 307