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[1] , . . : , Facebook . : , 2012. 6-7.
[2] SimilarWeb (http://www.similarweb.com/global)
[3] http://www.liveinternet.ru/stat/vkontakte.ru/ LiveInternet.
[4] https://xakep.ru - , 2011, HighLoad++ 2011 .
[5] http://www.rusprofile.ru/id/2647641
[6] https://vk.com/vkcup
[7] https://vk.com/startfellows
[8] http://bycongroup.com (http://bycongroup.com/)
[9] TNS Web Index - 2014-2015. http://tns-global.ru.
[10] 3. Service Desk , , // , 5-6, 2001, . 43-48.
[11] Service Desk. , 01 (157), 2010, 37 .