By Karin Caifa, CNN
For decades, NORAD has had the inside scoop on track Santa's journey from the North Pole and across the globe.
But this year, a tech giant is getting in on the action too.
It's a Christmas Eve tradition. The North American Aerospace Defense Command, or NORAD, has been tracking Santa's trek since 1955 when a store advertisement misprinted a phone number for a private line to Santa and NORAD's predecessor got the calls instead.
As technology evolved, so has the ways kids keep tabs on Mr. Claus.
First phone calls, then the web.
Now there's NORAD Santa Tracker apps for iPhone, Android, and Windows phone users. Sleigh watchers can also keep up on Bing maps or on Twitter, @NORADSanta.
NORAD had been tracking Santa with Google Earth since 2004, but this year the two entities went separate ways.
Instead, NORAD has teamed with Microsoft, and Google has set up a tool of their own. Google's Santa tracker has been highlighting North Pole preps in the lead up to Christmas.
And in his spare time, Santa's been making phone calls to good girls and boys, sending messages via his Google+ page.
On the big night, kids of all ages can watch Santa hop from continent to continent with Google Maps and Google Earth.
Those out doing last-minute shopping can follow along with their smartphone app for Android.