This might get you started...
http://code.google.com/more/#label=Featured&product=maps



>Hi All
>
>A customer of mine just asked for a mini app able to display maps and directions after providing an starting and ending zip code.
>I have seen google maps and microsoft's equivalent and understand it is possible.
>The customer also owns mapquest's licences and that is another posibility although I'd like to stick to use Internet-available RPCs if possible.
>
>May you help me with some URLs pointing to sample code (or some sample code from the UT) using any of those, please?
>Please share your preference and experience with similar projects too.
>
>Many thanks in advance,
>
>Max