Can you trust measurements of online readership that don’t have access to backstage data?

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A survey that went out this morning called the American Customer Satisfaction Index (ACSI), garnered a lot of attention around the blogosphere . While this survey is nothing new, this year, they included a few “social media” sites for the first time. And the results were interesting. Or, at least, the results basically said Facebook sucks. And that’s interesting. But here’s the thing.

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