Making money through technology is Jeff Fluhr's stock-in-trade. Fluhr, 38, was the co-founder of San Francisco's StubHub.com, an online ticket marketplace where fans buy and sell from each other. Fluhr sold it to eBay in 2007 for $310 million. Now he's trying for an encore with the launch of Spreecast.com, a social video platform designed to bring the intimacy of face-to-face conversations online.

Here's his story:

My father [Zachary] was an electrical engineer for AT&T (T, Fortune 500) and my mother [Laura] worked at a women's designer-consignment shop in Manhattan owned by her dad [Michael Kosof]. She later took over the store. When my dad retired, he started a commercial real estate security business, so there's entrepreneurship in my family blood.