2 Facebook 2 – eBizMBA Rank | 700,000,000 – Estimated Unique Monthly Visitors | 3 – Compete Rank | 2 – Quantcast Rank | 2 – Alexa Rank. The Most Popular Websites | Updated 4/15/2013 Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15