Yes, major established media beats the blogosphere because of all that fact checking and editing! And as though there are not examples enough already....
Michael Hirsh is a senior Newsweek editor. He wrote this. Sigh!
He is a senior editor for goshsakes! He wrote that Al Gore is the "winner of the largest popular-vote total in U.S. presidential history."
Wrong by a factor of three!
In 2000, Gore's popular vote total was 50,999,897.
Reagan's 1984 popular vote total was 54,455,472.
Both Bush's and Kerry's 2004 popular vote counts also beat Gore's, at 62,028,285 and 59,028,109 respectively.
I'd venture that even going through his own mag's archive would have given him a clue.
Sheesh! Maybe some junior editor can fact check the senior editor!