Tags: Website.
Odnoklassniki (Russian: Одноклассники Classmates) is a social network service for classmates and old friends. It is 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 200 million registered users and 45 million daily unique visitors. Users have to be at least seven years old to make an account.