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http://www.websitetemplatereviews.com/900-new-customers-in-a-single-day-groupon-advertising-tips
Friday, May 4, 2012
900 New Customers In a Single Day: Groupon Advertising Tips
"For some businesses Groupon results are spectacular. But, the fallout could be disastrous if you don’t prepare (see below). The great thing about Groupon is it costs the advertiser (you) nothing up front. You only pay a percentage of the sales generated via Groupon."
