Here are the top 15 Most Popular Social Networking Websites for June. These are derived from eBizMBA Rank which is a continually updated average of each website’s Alexa Global Traffic Rank, and U.S. Traffic Rank from both Compete and Quantcast.” http://www.ebizmba.com/articles/social-networking-websites
VK is the largest European social network with over a 100 million active users. http://vk.com/about
They are #8 on the Top Social Sites in the world
Social Hipsters