Using GPS Data with Google Maps
From Pvdwiki
Google maps is probably one of the most powerful features within google.
The API
To use google features within your own html, an API key must be applied for. Each URL needs it's own Key to funtion.
http://www.google.com/apis/maps/signup.html
The google API has specific instructions for adding maps, including GPS tracks to your website.
http://www.google.com/apis/maps/