Google has a great Santa Tracker

Visit Santa's Village created by Google and enjoy a new activity every day. Each is labeled as Watch, Learn, or Play and feature varied levels of difficulty. There is a little something for everyone and lots of learning embedded into most every activity.

The site employs different forms of Google product. Some are tied to Google Code while others like the parachuting Santa game employs maps of the user's actual location. We typed in our school location and Santa landed on the map right in our parking lot. When Christmas Eve arrives, kids will be able to even track Santa on his trip.