The revenues represent a 33.9 per cent increase over the same period in 2004 and indicate that the overall revenues for 2005 could exceed $12 billion.
Pete Petrusky, director for advisory services at PricewaterhouseCoopers, which carried out the research, said that the growth is particularly significant because of the larger revenue base.
"The continued strength in internet advertising reflects in part the medium's unique ability to collapse the business cycle for advertising, marketing and branding, making it more attractive for traditional advertisers."
More news journalism.co.uk:
Web advertising to soar
Paid-for searches boost advertising spend
Ad spend hits record levels
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