New York—Dow Jones &Co. announced last week that it will start selling ad space on the front page of its flagship The Wall Street Journal starting in September. The “jewel box” ad space will be available in the lower right-hand corner of the front page of the Journal Monday through Saturday. Dow Jones did not say how much the front-page ads would cost or which advertisers have initially committed to purchasing the space. As marketers shift an increasing amount of ad dollars to the Web, print media products are scrambling to develop new revenue streams. “The front page of The Wall Street Journal will provide the greatest opportunity available anywhere, in any medium, for advertisers seeking to reach a large, affluent and influential audience,” said L. Gordon Crovitz, executive VP, Dow Jones and publisher of the Journal, in a news release. Last September the Journal starting selling ad space on the front page of its “Money & Investing” section and in October on the front page of its European and Asian edition. Earlier this year, The New York Times started selling ads on the front page of its "Business" section.