Startup: Rockify
The details: Based in Austin, founded in August 2011
Their story: Entrepreneur Joel Korpi wants to bring back old-school MTV, the channel that featured actual music videos instead of reality television shows. Korpi's Rockify.tv, still in private beta, aims to be a video Pandora, helping smartphone and tablet users discover content.
The secret sauce: Rockify plans to tap your social graph to figure out what type of music you're likely to like.