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On the Web, the competition for most popular site can be as intense as the race for the pennant or even the Presidency. So news that up-and-comer MySpace.com beat incumbent Yahoo! for most monthly page views for the first time in November understandably grabbed headlines. According to comScore Networks, News Corp.’s MySpace racked up 38.7 billion page views in November, compared with 38.1 billion for longtime leader Yahoo. But the dispatches concerning the upset were the online equivalent of the famous headline "Dewey Beats Truman."

Almost immediately, the results were called into question. UBS (UBS) analyst Benjamin Schachter left voicemail messages for investors and reporters warning against making decisions on comScore’s potentially unreliable data. Did MySpace Really Beat Yahoo?