Favorite talks
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Kirk Sorensen: Thorium, an alternative nuclear fuel
10:03 Posted: Jan 2012
Views: 499,797 | Comments: 289
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Paddy Ashdown: The global power shift
18:29 Posted: Jan 2012
Views: 754,906 | Comments: 246
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Damon Horowitz calls for a "moral operating system"
16:18 Posted: Jun 2011
Views: 294,172 | Comments: 140
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Michael Sandel: The lost art of democratic debate
19:42 Posted: Jun 2010
Views: 538,669 | Comments: 366
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Philip K. Howard: Four ways to fix a broken legal system
18:21 Posted: Feb 2010
Views: 342,070 | Comments: 266
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Bertrand Piccard's solar-powered adventure
17:46 Posted: Jan 2010
Views: 287,802 | Comments: 87
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Martin Seligman: The new era of positive psychology
23:42 Posted: Jul 2008
Views: 1,506,572 | Comments: 160
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Bill Strickland makes change with a slide show
35:28 Posted: Jan 2008
Views: 392,211 | Comments: 85