Good Things In Small Packages

A few years back, cellular phone services had their day as Wall Street's darlings. Next came drugmakers, then biotech startups. Now, it's the turn of all those companies crowding onto the Information Superhighway. The much-hyped Internet and telecommunications industries dominate this year's roster of Little Giants--public companies with small sales but great expectations. Despite having revenues under $150 million, these tiny dynamos boast market values strong enough to have earned them a spot on BUSINESS WEEK's ranking of America's most valuable companies.

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