Digital Sky Technologies (DST) is an investment firm based in Moscow, Russia. The company is a major investor in the Russian, CIS and Eastern European internet markets. It owns stakes in various internet companies that together account for over 70 percent of all hits on the Russian-speaking Internet. Its investments include the large social networks Vkontakte, Russian web portal Mail.ru and social networking company Forticom. Some of its income is from pay-per-click and selling virtual goods to users. - Source: Wikipedia