Forbes ranks the world's billionaires. These are the richest people on earth. Some inherited. Others took advantage of the opportunities in their lives. Many in the Top 10 are self-made.

Bill Gates tops the list at 50 billion. His MicroSoft co-hort, Bill Allen stands at no. 6 on the list. Even though Bill is a little down when compared to previous years, software has been good.

Oprah's packing 1.4 billion. I couldn't find Phil Donohue though. He should have done a book club.

The US tops the list with the 371 billionaires out of 793. There were only 476 bilionaires just three years ago.

» Check out the list