The Top 5 Internet Advertisers that Spend the Most Money on Ads

  Internet Business Category Spent on Ads Percentage of Total
Retail advertisers $5.0 billion 22%
Financial Services advertisers $3.0 billion 13%
Automotive advertisers $2.8 billion 12%
Computing advertisers $2.7 billion 12%
Telecom companies $2.0 billion 9%
Sources:  IAB Internet Advertising Revenue Report 2009.
List Notes: Data is money spent on internet ads for the year 2008 in US dollars.
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