Porn videos. Bloomberg BusinessWeek:

The good folks at ExtremeTech took it upon themselves this week to get at one of the Internet’s crucial questions—just how big are porn sites these days? The answer? Ron Jeremy big. To study porn sites, ExtremeTech turned to the DoubleClick Ad Planner tool from Google (GOOG). It’s a useful website where you can peek at information gathered by ad-serving cookies about how much traffic a website gets, the age and income of visitors, and the amount of time people spend on a site.
According to this tool, the online porn kingpin Xvideos feeds up 4.4 billion page views per month. That’s about 10 times as many as the New York Times and three times as many as CNN.com. YouPorn—another site packed full of stimulating content—notches 2.1 billion page views per month. And while people spend a few minutes per day on news sites, they tend to spend 15 minutes or more on porn sites, which would seem to say something rather definitive about, er, male stamina.
“But it’s not just men on the sites,” you shout. True, although the top porn sites count men as about 75 percent of their visitors. Breaking the stats down further, about half of the visitors make between $25,000 and $50,000 per year, while only 2 percent earn more than $150,000 per year. According to Google, the other interests of Xvideos visitors include Latin American music and gangs and organized crime, while YouPorn visitors like networking equipment and family films, so it’s an eclectic bunch.

Maybe Arianna Huffington is onto something. News and adult content with her “Celebrity Skin” section? (Possibly NSFW)

The rest here.