We are the No. 3 Internet company in China as measured by user base, according to a report we commissioned from iResearch. In January 2011, we had 339 million monthly active Internet users, representing a user penetration rate of 85.8% in China, according to iResearch. Recognizing security as a fundamental need of Internet and mobile users, we offer comprehensive high-quality Internet and mobile security products free of charge, providing users with secure access points to Internet activities. As a result, we have amassed a large and loyal user base, which we monetize primarily through offering online advertising and Internet value-added services.
Monthly active users of Qihoo 360's products were 345 million as of March, 2011, compared with 290 million at the end of 2010(1).
Qihoo 360's product penetration rate among all Chinese internet users was 88% as of March, 2011(1).
Monthly active users for 360 Safe Browser were 192 million, compared with 160 million at the end of 2010(1).
360 Safe Browser's user penetration rate was 48% as of March, 2011, compared with 41% at the end of 2010(1).
Monthly active users for the 360 Personal Start-up Page were 107 million as of March, 2011, compared with 90 million at the end of 2010(1).