It must be Mark Zuckerberg’s year as his masterpiece, Facebook claims the number 3 largest website title, overthrowing Yahoo! with a large margin. ComScore, the company which perpetrated the research came up with new metrics and presented the data that depicts Facebook’s 648 million unique visitors for November 2010 versus Yahoo’s 630 million.

The same report stated how Facebook battered Yahoo in different categories: “Facebook leaped over Yahoo in a batch of September comScore metrics related to U.S. video properties. As of August 2010, Facebook delivered video to 58.5 million users versus Yahoo’s 53.9, representing a total of 243 million viewing sessions to Yahoo’s 229 million. The only metric where Yahoo actually beat Facebook out was on viewing time—Yahoo users viewed an average of 31.6 minutes of online video per person versus Facebook users’ 20.5 minutes per person.”

The two other sites that stand between Facebook and the crown are Microsoft with 869 million unique visitors and the defending champion Google. Yahoo, with all the job cuts and closure of sites like Flickr and Delicious.com, has landed in the fourth place. This movement is actually not surprising as Facebook’s rise to prominence is undisputed. This was also acknowledged by Yahoo’s leadership team and has clearly noted that the social network giant is indeed a threat to their business.

In an interview at a Bloomberg event, Carol Bartz, CEO of Yahoo stated how they perceive Facebook now. “Our greatest competitor probably is Facebook, more so than Google. They’re a hot site, but there’s room for more than one of anything.” Yahoo! also admitted that they have indeed lost the battle as the world’s prime search engine.

But, the more interesting battle between Google and Facebook has been the subject of most rivalry news in 2010. The saga will definitely welcome 2011 and the competition might just grow bigger and bigger, to hopefully benefit users. Just this holiday season, Hotwise has conducted a study in UK website traffic during this period and revealed that the social network has, for the first time ever, surpassed the search engine giant.