For geowanking kids: NORANDSANTA is a website that broadcast information about "santa tracking":
Detecting Santa all starts with the NORAD radar system called the North Warning System. This powerful radar system has 47 installations strung across the northern border of North America. NORAD makes a point of checking the radar closely for indications of Santa Claus leaving the North Pole on Christmas Eve.
It seems that they also use satellites, NORAD jet fighter and "santa cams" ("ultra-cool high-tech high-speed digital cameras that are pre-positioned at many places around the world"). See Paris below:
Why do I blog this? even though this leaves me sorta speechless, it's yet another XXX-tracking platform.