Advetisers spent US$190 million on online ads in China in the three months from May to July, accounting for around 3% of total advertising spend in the period, according to a new report. "There is big space to grow," Hans Yu, the executive director of online-research company Nielsen/NetRatings in China, told the Wall Street Journal, citing the US where online-ad spending is about 6% of the total. The biggest spenders were in the automotive, computer, and electronics and consumer-goods industries. Banks and other financial-services companies, which dominate online spending in most other markets, accounted for just 3%. China Mobile was the largest online advertiser in the period with 3.1 billion ad impressions. Earlier this year, Chinese firm iResearch estimated that online advertising, including email, pictures, logos and classified ads on Web sites, generated US$258 million in the first six months of the year and will likely reach US$575 million by the end of the year. In 2005, online advertising generated about US$390 million in revenue for Chinese websites, eight times the total in 2001, according to iResearch.