On Jun 27, 2005, at 4:36 PM, John Browne wrote:
> I'm interested in doing a project for calculating distances similar to
> this. Anyone have suggestions on how/where this type of data can be
> obtained? Is it freely available anywhere?
>
Google is your friend. There are places that sell very well kept
zipcode databases for under $50.
Vivek Khera, Ph.D.
+1-301-869-4449 x806