America's Best Young Entrepreneurs 2009

Welcome to our fifth annual roundup of the country's most promising young entrepreneurs. Before we get started examining the new batch, consider this question: Who is more likely to start a business: A college student or a worker with a few decades of experience? Yep, you guessed it: the experienced worker.

It turns out it's boomers, not twentysomethings, who start the most businesses in the U.S. Over the past decade or so, the highest rate of entrepreneurial activity belongs to the 55-64 age group. The 20-34 age bracket, by contrast, had the lowest rate. That's according to a recent report by Dane Stangler, a senior analyst with the Kauffman Foundation, based on data collected from 1996 to 2007. It echoes research by entrepreneur-turned-academic Vivek Wadhwa, who found that twice as many tech entrepreneurs create ventures in their 50s as do those in their early 20s.