1 | Facebook2 - eBizMBA Rank | 550,000,000 - Estimated Unique Monthly Visitors | 3 - Compete Rank | 2 - Quantcast Rank | 2 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 2 | Twitter15 - eBizMBA Rank | 180,000,000 - Estimated Unique Monthly Visitors | 30 - Compete Rank | 5 - Quantcast Rank | 9 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 3 | LinkedIn33 - eBizMBA Rank | 100,000,000 - Estimated Unique Monthly Visitors | 57 - Compete Rank | 26 - Quantcast Rank | 17 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 4 | MySpace50 - eBizMBA Rank | 80,500,000 - Estimated Unique Monthly Visitors | 26 - Compete Rank | 44 - Quantcast Rank | 79 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 5 | Ning143 - eBizMBA Rank | 60,000,000 - Estimated Unique Monthly Visitors | 180 - Compete Rank | 120 - Quantcast Rank | 128 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 6 | Tagged225 - eBizMBA Rank | 25,000,000 - Estimated Unique Monthly Visitors | 382 - Compete Rank | 151 - Quantcast Rank | 141 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
 7 | orkut401 - eBizMBA Rank | 15,500,000 - Estimated Unique Monthly Visitors | *570* - Compete Rank | *540* - Quantcast Rank | 93 - Alexa Rank.
Most Popular Social Networking Websites | Updated 6/1/2011 | eBizMBA
