Vevo Now Second Largest Web Video Player in U.S.

In just over a year in business, Vevo has soared to become the second largest video property on the Web in the U.S., according to comScore—twice as large as Hulu.

But Hulu still serves more video ads than anybody else.

Vevo, a music video hub launched in December 2009, is a joint venture among Universal Music Group, Sony Music Entertainment and investor Abu Dhabi Media Company. In January 2011, the site reached 51 million unique users.

That puts Vevo in second place for the first time on comScore’s ranking, behind category goliath YouTube. Per comScore, Google Sites–which are comprised mostly of YouTube’s audience—reached a whopping 144 million unique users.

Of course, YouTube is a major source of traffic for Vevo, as the site serves as the default video channel for most music searches on YouTube.

Meanwhile, despite the hype surrounding Hulu, the site reached just under 25 million uniques in January per comScore, and its growth appears to have tailed off. However, the brand-friendly video property delivered more than a billion ads in January, twice as many as any other site or video ad network tracked by comScore. In fact, when it comes to ads served, neither Vevo nor YouTube cracked the top 10.