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The rise in online advertising spend is mainly contributed by the financial sector which totalled $6 million, according to Nielsen Online's AdRelevance report.
The entertainment industry is ranked second with $5 million, computer and electrical with $3 million, and education and learning also with $3 million. These four sectors together account for 59 per cent of the overall online spend in Hong Kong.
Joseph Kam, commercial director for Hong Kong and Taiwan at Nielsen Online, said advertisers in the Hong Kong market are showing "more confidence in turning to online advertising as our economy remains buoyant."
There were 4,300 online campaigns recorded in Q1, marking a 31 per cent increase in campaign numbers from the same period last year. A total of 1,200 of advertisers confirmed using digital platforms to promote their brand, compared to 1,057 in 2009.
In terms of ad impressions, Q1 sum up to 7.5 billion. Citicorp leads the top 10 advertisers list with 353 million ad impressions. The rest of the list includes HKSAR Government, American Express, Hong Kong Management Association, IC Digital Entertainment, Global Beauty International, Disney, Gamania Digital Entertainment, Octopus Holdings and Car.com.hk.