There is a shorter version on YouTube, but it is worth hearing all 54 minutes of this interview by Charlie Rose with Marissa Mayer, VP of Search Product and User Experience, Google.
[googlevideo]http://video.google.com/videoplay?docId=2130473232539454111[/googlevideo]
He next interviewed Eric Schmidt, CEO, Google:
[googlevideo]http://video.google.com/videoplay?docId=8240499345320964787[/googlevideo]