1 Mark Zuckerberg(Co-founder of Facebook)
The co-founder and CEO of the popular social networking website, Facebook, Mark Zuckerberg is also amongst the richest men in the world. Fascinated by computer since his early life, Zuckerberg co-created TheFacebook while still in college and later even dropped out to devote more time to it. At 23, he became the youngest self-made billionaire in history at that time.