Google’s Top Search Advertisers

The biggest chunk of Google’s revenue, search advertising, continues to be dominated by the titans of direct response: Wireless carriers, ecommerce sites, travel and financial services. IAC (Ask.com, Match.com, Citysearch, etc) was the #1 search buyer in the first 9 months of 2011. Microsoft, General Motors, Avis and Enterprise also make the top 20.

Kantar Media data as reported on Ad Age. Above chart from Business Insider.

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