The Interactive Map allows you to customize locations that are plotted on the map. Your map will only contain listings that fall within the selected categories. If you do not select any categories or locations (you must select at least one or the other), your search will not be limited to results that fall in a particular category or location, respectively. Simply select your categories and/or locations below (hold down the CTRL key to select multiple entries), then click the "Plot" button to have the listings plotted.