What do Google (NASDAQ:GOOG), Microsoft (NASDAQ:MSFT), Dell (NASDAQ:DELL), Wal-Mart (NYSE:WMT), and Dolby Labs (NYSE:DLB) have in common? Fool CEO, co-founder, and Motley Fool Hidden Gems advisor Tom Gardner reveals the secret to Online Managing Editor LouAnn DiCosmo in this edition of "Fool Video."