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A comment on GM Says Facebook Ads Don't Work, Pulls $10 Million Account. Parent comment

Re:GM Says Facebook Ads Don't Work, Pulls $10 Million Account by Wilya on Tuesday May 15, 2012 @04:55PM (#3978781)
You can't track the conversion rate from a TV ad either. That doesn't mean you can't notice a positive/negative effect related to the presence/absence of the ad. Especially at the scale of GM.
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