How to use Google Map API V3

I want to use the google Maps API v3. Where can i get the information for using the 开发者_开发知识库Google Maps in my application through the javascript without the API Key?

You can learn from

http://code.google.com/apis/maps/documentation/javascript/tutorial.html

If you want to test or see demo, try in

http://code.google.com/apis/ajax/playground/#map_simple_v3

The API key is no longer necessary with v3.

You can insert a reference to the API like so:

<script type="text/javascript" 
       src="http://maps.google.com/maps/api/js?sensor=false">
</script>