Last weekend, Jennifer Corriero had breakfast with Bill Clinton at the World Economic Forum's (WEF) annual meeting in New York City. The 21-year-old York business and communications student also touched base with her occasional boss, Bill Gates. Then she hobnobbed with some of the world's other richest and most powerful CEOs and statesmen.

How did she rate an invitation to this elite event? The WEF chose her as one of 100 Global Leaders for Tomorrow, bright young entrepreneurs from around the world who have demonstrated a commitment to society or the environment.