ocr: All menu-based search engines have menus, categories and subcategories. Still, there are several differences among them. For - example: : Sites listed- - Since submission is done separatelyto each engine, and every engine makes its own queries, different engines may include different sites. Categories -6 every - engine has its own categories, although in most cases, you'll find the differences petween them are minimal. Search opportunities - some engines allow for only menu-based searches, while others allow youto combine both menu-basedand keywords-based searches.
