But on Christmas Eve, it tackles perhaps its most important mission: tracking Santa Claus as he delivers presents around the world. NORAD has been in the Santa-tracking game for decades.

Fortunately, some of the world's greatest tech giants – most prominently Google – have invested in a savvy Santa Tracker ... including comical videos and games – whereas Norad's three ...

Having opened my first Advent calendar door – alas, it's chocolate, not a Lego Advent calendar this year – I came online to work and couldn't resist the temptation to check out Google's Santa ...