4/12/2012

Google's cost-per-click rate declined 9% between the first quarter of 2011 and the same period in 2012, with product listing ads commanding an 18% lower rate than text ads, even as their click rate increased, according to a report from Rimm-Kaufman Group. Yet spending on paid search marketing increased 30% year-over-year during the same period, the firm noted.

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