We all know the dot-com industry has had its ups and downs over the past decade. But here's a guy who continually manages to bracket the boom with dollar signs!

Robert Herjavec has lived the classic "rags to riches" story. The son of Croatian immigrants, he earned his incredible wealth by overcoming the odds with pure hard work and intuition. He remembers how his mother, who could barely speak English, lost the family savings to a smooth-talking vacuum salesman. Since then, Robert vowed he would never let his family be taken advantage of again.

In the early '90s, Robert eked out a living waiting tables at a posh Yorkville restaurant. During the initial stages of the dot com craze, he realized that technology was the ticket to serious money.

By night, he launched BRAK systems, his first technology company, which is now worth a reported $100 million dollars. He sold his company to AT&T in 2000, but that was only the start. Robert then helped negotiate the sale of another technology company to Nokia for $225 million. Instead of retiring with his cash, he now heads The Herjavec Group, a leading IT security and infrastructure integration firm.

His palatial 50,000 square foot Bridle Path mansion hosts luminaries like Michael Bublé and Mick Jagger. For thrills, Robert jets to a private island near Miami or cruises Yorkville in one of his many luxury cars.

In Robert's book Driven, Herjavec shares the secrets that took him from his job waiting tables to growing his nascent technology company into a world-class conglomerate, The Herjavec Group. Get your copy today!