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Does anyone have any recommendations on geolocation web services (preferably free!)?
Planning on using it in an asp.net app, I'd heard Google might have something.
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asked Aug 07 '09 22:08
GPS calculate location information from the satellite signal. It has the highest accuracy; in most Android smartphones, the accuracy can be up to 10 metres.
The Geolocation API returns a location and accuracy radius based on information about cell towers and WiFi nodes that the mobile client can detect. This document describes the protocol used to send this data to the server and to return a response to the client.
First, what is a geolocation service? Geolocation marketing is the process of determining the location of a computer, phone, or other network-based devices. This inferred location is based on geographical measurements of latitude and longitude to narrow down the location to city, zip code, street, and even address.
We use the Google Maps API and it's very straightforward to use. It takes some figuring out to begin with, but we were up and running using the geocoding portion in less than a day.
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MaxMind is not free, but their SaaS (web service) offering is VERY reasonably priced.
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