Abstract: A method of creating an audience map comprising the steps of; receiving a focus point comprising location data defining a geographical location; receiving trace data defining at least one geographical location of a potential viewer; determining a field of view which represents a region within which a potential viewer could see the focus point; projecting the field of view from either; (i) the focus point and determining whether the or each geographical location of the trace data falls within the field of view of the focus point and recording occurrences thereof; or (ii) the or each of the geographical locations of the potential viewer and determining whether the geographical location of the focus point falls within the field of view of the or each of the geographical locations of the potential viewer and recording occurrences thereof; and generating an audience map based on the recorded occurrences.

Abstract: A method and system for differentiating duplicate yet disjoint localities, such as cities, within a state or other principal geographic unit of interest is for use with electronic maps and databases. Duplicate locality name entries are stored in a database, locality name database entries are condensed for localities having two or more similar names, and adornments for duplicate locality names are stored in the database. In the adornment selection process, for a first duplicate locality, a second duplicate locality is selected that is closest to the first. Selected adornments are first and second significant localities, such as large cities, and are closer to the first and second duplicate localities, respectively, than the first and second duplicate localities are to each other, and are more significant than the first and second duplicate localities. Adornments to duplicate localities are displayed to the user. The process is repeated for remaining duplicate localities.