Van Oanh Google, the search engine accounting for up to 90% of the advertising revenues in Vietnam, has never announced its revenues as well as growth rates in the Vietnamese market. However, some experts and partners estimated Google’s revenues earned last year at some US$40 million compared to around US$25 million recorded in 2012. Nguyen Khanh Trinh, director of CleverAds Co., said that CleverAds obtained revenues of US$6 million last year, up 160% year-on-year, with around 70-80% of the firm’s revenues sourced from advertising deals with Google. According to Trinh, though CleverAds saw a 160% growth rate last year, such growth was lower than in previous years. Google has two sources of advertising revenues in Vietnam, with around 80% of the revenues obtained from keyword advertising of enterprises on the Google website while the rest from advertising partners. Keyword advertising growth in Vietnam is attributed to enterprises and individuals getting to know more about this advertising form whose cost is cheaper than advertising in print and on television, Trinh said. According to a source, the social network Facebook has had the first advertising agent in Vietnam after having over 20 million users in the local market. Meanwhile, the free text and call services supplier Viber is planning to seek an advertising partner in Vietnam.