The Economics Of Search Engine Marketing
Posted on March 23rd, 2008 by dhirender
According to SEMPO’s 2007 State of the Market Survey, North American spending on SEM for 2007 was almost $12.2 billion says this article in ClickZ. Paid placement accounted for 87 percent of overall spending, or $10.6 billion, while SEO accounted for approximately 11 percent, or almost $1.3 billion. Further, North American SEM spending is now [...]
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