How Google Makes Its Billions: The 20 Most Expensive AdWords Keyword Categories

"Insurance, loans and mortgages are the most expensive categories. Financial services is clearly where the money is." @iwebconsultant

How Google Makes Its Billions: The 20 Most Expensive AdWords Keyword Categories - Insurance keywords are the most searched for on Google, making insurance the most expensive category on Google AdWords and the top PPC money-maker for Google. Bidding on insurance keywords can cost advertisers up to $55 per click, according to a n... [Search Engine Watch]