Right now, Santa is still preparing his route, muttering to his reindeer and killing time with some basketball, but soon he'll start flying, and you won't miss a thing if you tune into noradsanta.org.
There you can see Santa's current location and his next stop on Google Maps; you can also watch the "Santa Cam" videos and learn more about each city Santa visits by clicking on the gift icons.
If you're the 3D-loving type, you can switch over to the (much more attractive) Google Earth view with the Google Earth plugin, which you can install here.
Mobile access is also supported; just visit m.noradsanta.org on your mobile phone's browser, or search for "santa" in Google Maps for mobile.
Finally, you can track Santa via Facebook and Twitter over at @noradsanta. For some slightly more advanced tips on how to track Santa this year, check out this page.