Porn Beats Search Engines in Internet Traffic

zamboni1138 writes "A just published Reuters story claims almost 20% of all U.S. web traffic is categorized as 'adult'. While some of it is just of an adult nature, most of it is probably porn. Search engines get about 5.5%, Google being about half of that. This should surprise no one given the bandwidth intensive nature of online porn. Of course this is only the research of one company over a one week period. Is this one of the reasons why the US DOJ recently announced it is going to be taking a closer look at the porn industry?"

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[mcc]

Well, the Reuters article says this study came from a company called Hitwise. So, let's see what they have to say.

Hmm, it looks like they've got a FAQ that gives a decent amount of information on their tracking methodology and seems to answer most of your questions. They seem to use a variety of sites and ISPs for tracking, though they're very vague as to what. The link also says that they are, in fact, using standardized definitions for the terms you mention, and they're the definitions given in "the industry standard definitions published by the US Internet Advertising Bureau's Media Measurement Task Force on 'Metrics and Methodology'". I'm not sure where to get these definitions, they aren't immediately turning up on a google search.

Still, that should be enough to give you a good start.