Another personal obsession:True performance baselines & ROI for SEO without attribution modeling

How do you determine your SEO program's real performance, discounting the effects of seasonality, paid search spending or any other external factors? Columnist Chris Liversidge lays out a step-by-step process for reaching a reliable ROI calculation.

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from Marketing Land - Internet Marketing News, Strategies & Tips http://marketingland.com/true-performance-baselines-roi-seo-without-attribution-modeling-179188
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