Yahoo released a statement Tuesday that comScore made an error in its June 2010 search engine ranking report, underreporting 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% versus the reported 7.4%, and U.S. duration was down 4.3% versus
the reported 6.4%. comScore will issue the correct numbers in the company's next data release.