Xiaofeng Peng: the 36 year-old who makes money from the sun

Xiaofeng Peng, age 36, is Chairman of the Board of Directors and Chief Executive Officer of LDK Solar Co., Ltd. He founded the company in July 2005 and it went public in 2007; it is now worth over $1.8 billion. Peng has made his own personal fortune of $1.5 billion all through renewable solar.(Link 1 | Link 2 | Photo)

The 26 year-old geek who created an empire

Twenty-six year-old Mark Zuckerberg is the computer savvy Harvard student who created a little website you might have heard of called Facebook. Though there is some controversy over who came up with the idea for the social networking site , there is no denying that it was Zuckerberg's hard work and brain power that brought Facebook to life and made it the most popular social networking site online today.

To date, Zuckerberg has made over 13.8 billion U.S. dollars. To his credit, Zuckerberg has already donated hundreds of thousands of dollars to charities and recently pledged to donate over half of his fortune to charity either over the course of his lifetime or after his death. (Link 1 | Link 2 | Photo)