Ok.ru
This is an oldest Russian social networking site specially designed for classmates and old friends and is available in 14 different languages under the ownership of Mail.ru Group, a Russian internet company which operates internationally under My.com.
The site is popular among users in Uzbekistan, Kyrgyzstan and Georgia. They mostly count the list of maximum users in number of age under 35 and those who are looking for postgraduate.
About history
The site was developed by Albert Popkov in March 2006 but shortly had to go through accusation of violating the copyrights of the I-CD company in which he was working. They assumed that Albert used out the information to create his own work that is similar to their launch, Passado. After ending out the case, Albert decided to sell out some shares to Digital Sky Technologies in 2008.
What they work with?
The site is working best in Russia having its host server in Moscow with Golden Telecom Network. This site is also as much popular as the VKontakte and is written out in Java with server Apache Tomcat. It is well designed in Russian language but one can change it in other preferred ones also.
How to use it?
The site has wide spread impact in whole Russia also including the former Soviet Republics. Currently it is working with over 200 million users that are registered and counts out 1.5 billion daily unique visitors. The impressive average visit duration counts out to be 25 minutes indicating out that people are hooked on the site.

The site requires no registration fee for activation of account since August 31, 2010 and mainly considers the ones to make account who are above 7. They have features just like other social site with an ability to engage in private chats with friends and even going for rating the photos, participating in polls and see who visited out their profile through navigation button. Gaming is other impressive option on the site. We can say it is an ideal platform to craft hyper-focused content.
Achievements
The site is two times winner of Runet Prizes in 2006 and 2007 whereas it also managed to make its place among Top 10 Russian Internet Brands Out to Conquer the World in 2012.