Forbes.com today posted a link of the world’s billionaires. Mark Zuckerberg, Facebook founder, was named the world’s youngest billionaire at 23 years old. Not to mention that his money was not inherited. Zuckerberg’s enormous success is pretty much unrivaled seeing as his company has grown from a dorm room pet project to a $15billion internet empire in just a few short years. Just think … a billionaire worth $1.5billion at 23 … and he never even graduated from college.