In addition to other features, Odnokassniki users can share photographs, play games and chat with others online. They can also rate other people's photographs and view a real-time listing of who's on the site at any given time.
Popular in Russian and former Soviet republics, Odnokassniki users stream and share videos with friends and listen to music. They can also see who has viewed their profile. For an additional fee, people send virtual roses to one another and give premium ratings to photographs.
Founded in 2006 by Albert Popkov, the primary purpose of the social networking site is to connect people with their "odnoklassniki," or classmates. As of 2015, the site boasts over 200 million registered users, with 45 million different people clicking online each day. While the average daily time spent on the site is 25 minutes, the number of users is slowly declining as the Russian version of Facebook and social networking site vKontakte gain popularity. In 2012, Venture Village identified the site as one of the top 10 Russian Internet brands.
Odnoklassniki's users are generally under the age of 35 and tend to be men earning under $30,000 who have postgraduate educations. The site is especially popular among users in Kyrgyzstan, where it is ranked no. 4, and Armenia, where the site is ranked no. 5.