Weymouth is CEO of dineXpert, a group buying organization working with independent restaurants. In 2008 she was named both publisher of Washington Post Co. and CEO of Washington Post Media, an advertising unit. She joined the Post in 1996 as assistant counsel and went on to serve in a variety of roles, including VP of advertising. From 1993-1996 she practiced law at Williams & Connolly in Washington. She is a great-granddaughter of Eugene Meyer, who in 1933 bought The Washington Post.