 | Talk with Dennis Crowley (Foursquare) and Andrew Mason (Groupon). Moderated by Kara Swisher. | From: MarketingDirecto Views: 310  0 ratings |
| Time: 55:46 | More in News & Politics |
viernes, 4 de febrero de 2011
DLD 2011: Local Markets-with Foursquare & Groupon founders
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