July 19, 2011 04:23 am GMT
Original Link: http://feeds09.technorati.com/~r/trarticles/~3/vtHYXJMfARg/
Clicks That Cost: How Google Made Over $32 Billion Last Year
WordStream Publishes AdWords' 20 Most Expensive Keyword CategoriesOriginal Link: http://feeds09.technorati.com/~r/trarticles/~3/vtHYXJMfARg/
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