NEW YORK, NY--(Marketwire - October 29, 2010) - Bernstein Liebhard LLP today announced that an action has been filed in the United States District Court for the District of Columbia on behalf of purchasers (the "Class") of The Washington Post Company ("WPO" or the "Washington Post" or the "Company") (NYSE: WPO) common stock during the period July 31, 2009 and August 13, 2010, inclusive (the "Class Period").