SXSWInteractive

With 20,000 attendees and corporate outposts by the score, this year's South by Southwest Interactive has a carnival-like atmosphere. From its origin as a sort of spring break for nerds, the event has grown into something more like Disneyland for adults.

More than 13,000 people come to South by Southwest Interactive in Austin to launch new products, play, learn -- and party. It's become one of the hottest tech shows in the country for creative types to network with geeks.