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Open microblogging platform Sina micro-blog is a system based on open information subscriptions, sharing and exchange platform. Open microblogging platform gives you a massive microblogging information, fan relations, as well as information on fission occurs anywhere communication channels.
You can log in and create a platform for applications, use the microblogging platform provides the interface to create interesting applications, or to get your site has more social features.

Mail.Ru Group - the largest Internet company in the Russian segment of the web and the leading player headings on monthly unique visitors. The composition of Mail.Ru Group is the most popular Russian free email service, and two of the largest in runet instant messenger - Mail.Ru Agent and ICQ. The company operates two leading Russian social networks, Moi [email protected] and classmates, and also owns a significant stake in the social network VKontakte.

More info at http://corp.mail.ru/

Mail.Ru Group (LSE:MAIL, listed since November 5, 2010) is a leading Internet company in the high-growth Russian-speaking Internet markets (Russia is Europe's largest Internet market measured by number of users, comScore). Mail.Ru Group's sites reach approximately 84% of Russian Internet users on a monthly basis (comScore, October 2012) and the Company is in the TOP-5 largest Internet business, based on the number of total pages viewed (comScore, October 2012).

More info at: http://corp.mail.ru/en/about/

We help you easily discover new and interesting stuff on the Web. Tell us what you like, and we’ll introduce you to amazing web pages, videos, photos and more that you wouldn’t have found on your own.

As you Stumble through great web pages, tell us whether you Like or Dislike our recommendations so we can show you more of what’s best for you. We’ll show you web pages based on that feedback as well as what similar Stumblers and the people you follow have Liked or Disliked.

VK is the largest European social network with over a 100 million active users.

You can find out more about us on Wikipedia:
http://en.wikipedia.org/wiki/VK_(social_network)

Plurk is an easy way to chronicle and share the things you do, the way you feel, and all the other things in between that make up your life, with the people close to you. It's instant gratification, instant self-indulgence, instant celebrity, instantly YOU. Share your life stream, live your life….Plurk!

More info at: http://www.plurk.com/aboutUs

Russian social network for classmates and old friends.