Odnoklassniki

Odnoklassniki (Classmates) is a social network service for classmates and old friends. It's popular in Russia and former Soviet Republics. The site was developed by Albert Popkov on March 4, 2006. The website currently claims that it has more than 148 million registered users and 33 million daily unique visitors. Odnoklassniki also currently has an Alexa Internet traffic ranking of 67 worldwide and 7 for Russia. Revenues in the first quarter of 2008 for Odnoklassniki amounted to $3.3 million.