Tuesday, September 4, 2007

What Does CPM Mean?

From Adsense's own site:

"From a publisher's perspective, the effective cost-per-thousand impressions (eCPM) is a useful way to compare revenue across different channels and advertising programs. It is calculated by dividing total earnings by the number of impressions in thousands. For example, if a publisher earned $180 from 45,000 impressions, the eCPM would equal $180/45, or $4.00. However, please keep in mind that eCPM is a reporting feature that does not represent the actual amount paid to a publisher."

Personally I use it as a way to judge what kind of rate I'm getting from advertisers - in other words - are my sites drawing high-paying advertisers

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