Posted by Brian Dunning on 10/07/53 11:05

On Jan 11, 2005, at 12:39 PM, Greg Donald wrote:

> This does not take into account the curve of the earth. In addition
> you'll need a db with the latitude and longitude for each zip code.

If I might be so bold as to suggest one without getting flamed:

http://www.zipwise.com/

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