I have been asked to develop a website that will offer users a list of solicitors based on their location. I think my best solution will be to use googlemaps. I am not sure where to find any information on how I can setup googlemaps to work with an existing database that I will have and offer users a list based on eg. 10, 20, 30 mile etc radius. My database will have the postcodes for the solicitors and I will also request the user to enter either their town, location or postcode before I query the database.