Romney Campaign Spending up to $120K a day on Twitter Ads | Hacker News

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		Romney Campaign Spending up to $120K a day on Twitter Ads (clickz.com)
		1 point by jhull on Sept 4, 2012 \| hide \| past \| favorite \| 1 comment

NeilRShah on Sept 4, 2012 [–]

I know this is the age old question... But are these things effective? Is there any data on the ROI for campaigns for online advertising?

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