Most search engines provide a way for business to manually enter their own information on their maps and search results. While just posting won’t ensure you come up at the top, or even the first page. If you list your rental properties address it pick your keywords right, you may come up in a geographic search if they person searching specifies a location or uses the map search function.
If you go the Google Maps home page http://maps.google.com/ you will notice a link to “put your business on google maps”
Go ahead. You never know!


