I used the Yahoo Maps AJAX API to add location maps to RockvilleLiving.com. You can now find the location of any type of business or organization (hotels, for example, or performing arts centers) in the database on a map, as well as the location of a shopping center with a list of its businesses (Congressional Plaza, for example). I'm really excited to have got this working! For anyone wishing to do something similar with maps, I also recommend this online batch geocoder, which takes an Excel file as input and returns the same file with latitude and longitude information in it. Just make sure you remove extra letters from street addresses or it will return incorrect locations.