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Where some legends of the dot-com era are now

CNBC correspondent Tom Costello reports on the sharp rise in the Nasdaq Composite at the Nasdaq Market Site in Times Square in New York, January 3, 2000.

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The Nasdaq Composite is approaching the 5,000 mark once again, a level the tech-heavy index hasn't reached since March 2000. Now, 15 years later, let's look back at the dot-com bubble legends who helped the index balloon to record highs at the turn of the century.