Google's business WAS the long tail, but increasingly, it's focusing on the 80:20 rule. For example, on YouTube, it's shifting its focus from undifferentiated and hard-to-sell inventory on user-generated content to professionally-produced content that's likely to generate both more views and higher advertising rates. If you don't think that Google is doing very sophisticated return on investment calculations to optimize its inventory of Adsense sites, you don't know Google.
Google Adsense did the same thing to both my blog and my videos on YouTube, for an almost identical reason, and then refused to change its decision when I showed them that I either owned the "objectionable" content or it was intended for public use. I believe that what's really happening is that Google is trying to weed out low-traffic sites from Adsense, and is using copyright violations as the pretext to do so. That would explain why the company refused to reinstate Cody Jackson's site when he removed his eBook from the torrent sites. They're not really interested in the copyright violations--they just want to get his site out of Adsense.
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