Yahoo! Inc. (NASDAQ:YHOO) today announced that comScore (NASDAQ:SCOR) has notified the company of an error in its June 2010 publication. comScore, as a result of this error, underreported Yahoo!'s U.S. page views by more than one billion and its duration metrics by more than 850 million minutes. Based on the corrected numbers, on a month-over-month basis, Yahoo!'s U.S. page views were down 4.7 percent versus the reported 7.4 percent, and U.S. duration was down 4.3 percent versus the reported 6.4 percent. comScore has committed to issuing the correct numbers in the company's next data release.