New York--The New York Times Co. said that ad revenue for the company's newspaper group fell 0.7% in July, compared with the same month last year. However, ad revenue at the company's flagship, The New York Times, fell 2.1% during the same period. Classified advertising revenue continued to fall as weakness in help-wanted advertising was offset only in part by growth in real estate advertising. Ad revenue for the company's New England Newspaper Group, which includes The Boston Globe, increased 1.9% for July, compared with July 2001. Retail advertising revenue increased due to gains in department store and discount department store advertising.