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From: Dave Angel <davea@davea.name>
Subject: Re: Geo Location extracted from visitors ip address
Date: Sat, 06 Jul 2013 07:49:07 -0400
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On 07/06/2013 04:41 AM, Νίκος Gr33k wrote:
> Στις 6/7/2013 11:30 πμ, ο/η Chris Angelico έγραψε:
>> On Sat, Jul 6, 2013 at 6:01 PM, ����� Gr33k <nikos@superhost.gr> wrote:
>>> Is there any way to pinpoint the visitor's exact location?
>>
>> Yes. You ask them to fill in a shipping address. They may still lie,
>> or they may choose to not answer, but that's the best you're going to
>> achieve without getting a wizard to cast Scrying.
>
> No, no registration requirements.
>
> you know when i go to maps.google.com its always find my exact city of
> location and not just say Europe/Athens.
>
> and twitter and facebook too both of them pinpoint my _exact_ location.
>
> How are they able to do it? We need the same way.
>

At some point, you entered your address, and it's stored in some 
database in the sky.  You have cookies on your machine which correlate 
to that database.

Chances are you did it for google-maps, and google shared it with their 
search engine and other parts.

As far as I know, each such company has a separate database, but perhaps 
google (for exakmple) has an partner API which facebook uses.

-- 
DaveA