The usefulness, and consequently the performance, of advertisements are improved by allowing businesses to better target their ads to a responsive audience. For example, location information may be used in ad relevancy determination, and in attribute (e.g., position) arbitration. Such location information may be associated with price information, such as a maximum price bid, and/or with ad performance information. Ad performance information may be tracked on the basis of location information. The content of an ad creative, and/or of a landing page may be selected and/or modified using location information. Tools may be provided to enter and/or modify location information, such as location-dependent targeting information and price information. The location information used to target and/or score ads may be, include, or define an area. The area may be defined by at least one geographic reference point (e.g., defined by latitude and longitude coordinates) and perhaps additional information.