My God, I can't wait 'till the 22nd so I can, not only shove it down there throats, but so I can stop seeing these questions (though I guarantee some "smart" person is going to post a question like "Who knew the world wasn't going to end?" and from there it'll never stop).
I don't think it's going to end and if it were to then it would be because it was meant to happen - not because some mayans supposedly predicted it (because they didn't), not because a group of scientists said the planets alignment would kill us, and certainly not because some intelligent basstard walking the street said so. I believe that we, as humans won't know, no matter what religion you are. The end of the world could be when the sun dies out or when some massive rogue planet or asteroid finally hits us.
For all the skeptics and believers of this supposed "apocalypse" go here and from there you find what you believe it is. Here, I'll feel better tonight if I know I at least tried educating someone or changed someones opinion without the worry of hundreds of naive and gullible Americans offing themselves: www.nasa.gov/topics/earth/features/2012.html