[thelist] distance between webservice

pete pete at vex.net
Sun Mar 19 22:39:21 CST 2006

Every social networking site (it would seem) has the ability to tell you 
how many miles/km you are from another person.

Is there a best practices approach to obtaining this information? Surely 
each site doesn't maintain a table that maps relative distances between 
each zip/postal code etc.

I'm hoping there's a REST web service or something along those lines?

I suppose closely related is the ability to map a zip/postal to a city.

How do you folks do it?

How many km is 90210 to M5T 2C2? (rhetorical)


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