By setting your browser to batchgeocode.com you will have access to the latest tool for calculating distances and making mashup maps available.
This web-based service will enable you to take any list of street addresses and then geolocate them and find out the latitude and longitude coordinates in question. Once this has been done, you will be able to calculate distances to multiple addresses from a single given point, as the custom data that you have can be used in conjunction with Google Maps. BatchGeocode, then, has the distinction of being the first web browser based service that can map multiple locations at the same time.
The site provides comprehensive information regarding how to carry out a geolocation process, and this includes examples and instructions for copying and pasting the results into a spreadsheet along with format considerations.
Moreover, once you have geocoded your custom address data you can easily display it on your webpage. Just follow the link which is provided.
This service is actually rendered free of charge, but a link is featured for you to make a donation and support the programmer.
BatchGeocode.com In Their Own Words
“Geocoding on the web is not a new concept, in fact there are many free geocoders available on the web, but this is the first free browser based geocoding service to provide coordinate lookup in bulk and map multiple locations. This tool maps many addresses all at once, rather than one at a time.”
Why BatchGeocode.com It Might Be A Killer
It is the first geocoder on the Net that can map multiple locations at the same time.
Some Questions About BatchGeocode.com
How is the actual geocoding process carried out? 
