5. A method comprising: defining at least one category as containing documents that may be retrieved wherein said documents include business information taken from listings in a least one directory of businesses; associating at least one supercategory with multiple categories including said at least one category by mapping the multiple categories to the at least one supercategory; associating an advertisement with at least one of said supercategories, the advertisement being separate from the documents contained in the at least one category; determining at least one term associated with a user search query; determining a first of said at least one supercategory based on at least one term of said user search query and said multiple categories of the at least one supercategory; and displaying an advertisement associated with said first supercategory.
10. The method of claim 5 , wherein said determining a first of said at least one supercategory in accordance with said user search query includes: determining a geographic area that is a search term included in said user search query.