When I was a kid, parents used to take us out to the airport on Christmas Eve, and we would sit and watch the planes until we somehow convinced ourselves that one of the red lights in the sky looked suspiciously...no, EXACTLY like Rudolf's red nose. Then, we would rush home, and get in bed, and pretend to be asleep, so Santa would visit.
Eventually, the weather stations, along with NORAD (the North American Aerospace Defense Command), started helping out with the whole "tracking Santa" thing on Christmas Eve. The video above (also at www.YouTube/user/NORADTracksSanta.) is a re-cap of Santa's adventure last year.
Well, as with everything else, this whole business of tracking Santa's progress on Christmas Eve has gone very high-tech, and is now web-based. There's a countdown, and details about how to prepare for the annual excitement on NoradSanta.org. Of course, they're also on Facebook and on Twitter, and now on Google Earth. And then, of course, if you aren't near a computer, you can track Santa using NORAD's mobile app, m.noradsanta.org.
Maybe you can use that mobile app while you're out at the airport, looking for Rudolf...Merry Christmas!