Launched in February 2004, Facebook is a social networking service founded by Mark Zuckerberg with his college roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. Early investors include Microsoft and Hong Kong tycoon Li Ka- shing, through his namesake charitable foundation. Facebook’s US$16 billion initial public offering in May 2012 generated huge investor interest although the shares subsequently slumped in price.

Facebook's Jayne Leung is upbeat on advertising opportunities in the city, with 2.9 million people visiting its site daily. Photo: May Tse

Facebook to spur more digital advertising in Hong Kong

When Sony Mobile Communications chose Facebook as the Hong Kong launch pad for its new Xperia smartphone in October last year, the campaign became one of the company's most successful social media initiatives in the city.