Mark Cuban, 41
Todd Wagner, 39
Co-founders, Yahoo Broadcast Services; Senior Vice Presidents, Yahoo!, Dallas
Cuban and Wagner showed what dot-com entrepreneurs in Texas can become: incredibly, unfathomably rich. The co-founders of AudioNet started out in 1995 with a transmitter set up in Cuban's bedroom sending radio signals from Dallas station KLIF to home computers via the Internet. At first the company broadcast mainly sporting events. Then it began broadcasting presidential conventions and the like, demonstrating the Net's multimedia potential. In May 1998 its named changed to Broadcast.com, and the rest is Wall Street history: In July 1998 the company's IPO was the largest ever to date (it has since been surpassed). A year later, Web giant Yahoo! acquired the company for $5.7 billion. These days Cuban and Wagner don't enjoy as high a profile (though Cuban's is certain to rise as the new majority owner of the Dallas Mavericks), but they do have the power of Yahoo! behind them; Cuban is scouting for new opportunities in digital media, while Wagner is more involved in the company's day-to-day operations. And the operation is expanding: Late last year Yahoo Broadcast announced it would stay in its converted warehouses in Dallas' inner-city Deep Ellum neighborhood and add seven hundred jobs.