Summary: NEW YORK (AdAge.com) -- Hulu hasn't just grown since it launched 13 months ago. It's exploded. According to Nielsen, it now streams more online video than any other site except YouTube. And although it is viewed by many as the symbol of traditional TV's bright future, some wonder about the long-term strength of its business model. And that very question was put to Hulu CEO Jason Kilar in an on-stage interview at the 4As Leadership Conference.
