The two most popular ways to get on the list of Youngest Billionaires of 2013 ? Be a Facebook shareholder or inherit your money.
Few CEOs of any age are under more media scrutiny than Mark Zuckerberg (who's only 8 days older than Moskovitz). Since taking Facebook public in May 2012, and getting married days later, the hoodie-wearing founder has seen his net worth rise and fall with every fluctuation of the stock price.
- Mark Zuckerberg
- Age: 28
- Net Worth: $13.3 billion