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Tag: NEILSEN

Does sampling user data give an accurate picture of traffic?

If you've ever played the web traffic game, where big numbers can mean big advertiser dollars --and small numbers can mean going bust -- you're probably keenly aware of the lousy accuracy of "panel" based sampling methods used to rate and rank sites against each other. BusinessWeek takes a look at how inaccuracy means trouble for some web upstarts, and at the ongoing struggle by some to ...