CHICAGO (MarketWatch) - Washington Post Co. shares lost ground Thursday after the chairman and chief executive of the company's Kaplan Inc. education division announced his resignation late Wednesday.

The Washington Post Co. on Thursday named Vijay Ravindran as the company's chief digital officer, effective in February.

The head of The Washington Post Co.'s biggest revenue-generating business is resigning after 17 years, the company said yesterday.

The chief executive of the Washington Post Co's Kaplan education and test preparation unit has resigned after 17 years, and is leaving with $46 million from a stock option plan.

(AP:WASHINGTON) The Washington Post Co. on Thursday named Vijay Ravindran as the company's chief digital officer, effective in February. Ravindran is the chief technology officer of Catalist LLC, a startup tech company that built a national voter database on more than 260 million people.

Nov. 19 (Bloomberg) -- Washington Post Co. 's Kaplan test- preparation company named Andrew Rosen chairman and chief executive officer, replacing Jonathan Grayer , who resigned after leading the company since 1994.

The Washington Post Co. may now need a prep course of its own, writes Jon Friedman.

Washington Post Shares Slip After News Of Kaplan Departure

WASHINGTON----Vijay Ravindran has been named senior vice president and chief digital officer of The Washington Post Company . He will assume his responsibilities with the Company in February 2009.

NEW YORK (Reuters) - The chief executive of the Washington Post Co's Kaplan education and test preparation unit has resigned after 17 years, and is leaving with $46 million from a stock option plan.