plot density on map

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Author: Kevin Brown
Date:  
Subject: plot density on map
Mike Starke wrote:
> I am wondering if anyone can direct me to either
> some software or a web site that functions much
> like http://maps.yahoo.com
>
> I would like to query my database for the address and zip,
> and have it plot a 'dot' on a valley map (or map for any city)
> for each entry.


Only programs that I can think of that do this are commercial products (not
F/OS). Some of the data they use is free from the Census bureau (Tiger data in
the US), but only covers the US and just shows how streets interconnect, don't
think is shows gps data.