As it has for the past four years, Google will be mapping Santa Claus' trek from the icy North Pole to rooftops around the globe on Christmas Eve. But this year, good girls and boys can track their gifts via mobile phones and Twitter, too.
Starting at 3 a.m. PST on Wednesday, a Google Map with Santa's current location will be displayed on the NORAD Santa Web site, operated by Google and the North American Aerospace Defense Command.
Google will be displaying high-resolution "Santa Cam" video of the gift-laden airborne sleigh. For locations without video, photos from Panoramio will be displayed in Google Maps.
And for the first time, people can track Santa's journey on mobile phones with Google Maps for Mobile and follow him on Twitter by adding "@noradsanta."
You can read the history of Google's Santa tracking efforts on the Official Google Blog.
Google became NORAD's official Santa Tracking technology partner last year. NORAD has been tracking Santa for about 50 years.