Social Networking Websites Review 2013. Top 15 Most Popular Social Networking Sites. Here are the top 15 Most Popular Social Networking Sites as derived from our eBizMBA Rank which is a continually updated average of each website's U.S.
Traffic Rank from Quantcast and Global Traffic Rank from both Alexa and SimilarWeb. "*#*" Denotes an estimate for sites with limited data. 1 | facebook3 - eBizMBA Rank | 1,500,000,000 - Estimated Unique Monthly Visitors | 5 - Quantcast Rank | 3 - Alexa Rank | 2 - SimilarWeb Rank | Last Updated: May 1, 2017. The Most Popular Social Networking Sites | eBizMBA 2 | YouTube3 - eBizMBA Rank | 1,499,000,000 - Estimated Unique Monthly Visitors | 2 - Quantcast Rank | 4 - Alexa Rank | 3 - SimilarWeb Rank | Last Updated: May 1, 2017. The Most Popular Social Networking Sites | eBizMBA. Elgg - Open Source Social Networking Engine. Build and cultivate your own community - Ning.com.