Have you ever wondered how the fortune 500 use direct response marketing? This week's interview is with the Chief Marketing Officer of Best Buy, Barry Judge (Fortune 500 rank: 72). Barry has a $500M annual advertising spend at his disposal. Most of their marketing online is direct response driven. But one of the really interesting things from the call was learning how they track and analyze everything within each store to find out what performs best - and everything is tracked back to overall demographics via your rewards card. Its working, since Best Buy is bringing in $35 billion annual revenue.

Scott Cohen has applied some interesting approaches with video advertising as well as taken two companies public.

Ian Schafer had the first major paid video advertising on YouTube. He now runs an interactive marketing agency.

Chris Young focuses on online video, advertising, sponsorship, and promotion with video ads that ran on sites like MTV.

Mark Kahn runs a branded traffic inventory marketplace, where publishers upload inventory, and media buyers can buy it.