Google API v3 supports unlimited calls, and doesn’t need the complexity of creating keys like the version 2, Bing maps or Yahoo maps.
I have created a small, but useful function to get the Latitude and Longitude of a particular address or postcode. It looks pretty simple, but this is a nice start if you want to build something big with the Google API.
In this example I target the Buckingham Palace, in London (UK).
<html><head><script type='text/javascript' src='http://maps.google.com/maps/api/js?sensor=false'></script><script type="text/javascript">//########################################function GetLongitudeAndLatitude(_sAddress) {var mygc = new google.maps.Geocoder();mygc.geocode({ 'address': _sAddress }, function (results, status) {alert("latitude : " + results[0].geometry.location.lat());alert("longitude : " + results[0].geometry.location.lng());});}//########################################</script></head><body onload="GetLongitudeAndLatitude('SW1A 1AA');"></body></html>
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