Facebook co-founder Mark Zuckerberg is at the top of the richest social networkers with an estimated $13.5 billion. Company cofounders Dustin Moskovitz, Eduardo Saverin and Sean Parker also made Forbes’ 2011 Billionaires List. Groupon and Zynga founder Eric Lefkofsky also added a few names of their own to the list. Peter Thiel, founder of PayPal and a Facebook investor, is worth $1.1 billion, according to Forbes.”]
Source: https://www.csoonline.com/article/2127620/facebook-has-six-on-forbes–billionaires-list.html