The footage follows the introduction on stage of youth entertainment companies such as Shryk, Hangout, BlahGirls (presented by TV and film star Ashton Kutcher), TweeGee, and news-oriented sites such as Angstro and DotSpots (a favorite of Google Search guru Marissa Mayer). Also earlier: a riveting panel with angel investors Ron Conway, Yossi Vardi, Dave Kidder, Matt Coffin and Chris Sacca.
