comScore May Numbers Show Vevo, Facebook Ascending

Online video viewing numbers continue to climb with the passing of time, according to data released today by comScore, with Vevo jumping yet again in the rankings. Users watched nearly 34 billion videos in May 2010, with 43.1 percent of those attributable to YouTube (s GOOG) and other Google sites.

Meanwhile, Vevo leapfrogged over Viacom-owned properties (s VIA) to become the number four-viewed property of the month with over 430,000,000 videos viewed and 45,579,000 unique viewers — further proof that music videos may eventually rule supreme.

Facebook not only climbed in terms of unique viewers from 41 million to 45 million, but cracked the list of Top 10 Video Content Properties by Videos Viewed with 245,120,000 videos watched. comScore did not break down how many of those views were attributable to new parents sharing adorable baby videos via iPhone app, but I bet it helped.

However, Facebook’s 245 million videos watched per month doesn’t correspond with data previously reported by us. According to a Facebook representative, those figures were “Our internal stats for our monthly video uploads and views. We don’t comment on third party data so I can’t speak to how Comscore measures [its stats].”

Other data provided by comScore includes the fact that with 144.1 million viewers watching 14.6 billion videos on YouTube, that means the average YouTube user watches 101.2 videos each (in April, the number was 96). In addition, the average Hulu viewer watched 27.0 videos for a total of 2.7 hours of video per viewer. In total, 84.8 percent of the total U.S. Internet audience watched online video last month.

Guys, I think this online video thing is catching on.

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