Here's something to get you all into the Christmas spirit, economics style!
This is a video summing up the different economic schools of thought from Keynes, Malthus (less relevant), J. B Say (from Say's Law) and Hayek in playful song.
Its surprisingly enjoyable to listen to and is also a nice quick and dirty memory refresher for the key economics viewpoints. Here you go:
http://www.youtube.com/watch?v=7uKnd6IEiO0
About a year ago I posted up other playful videos from Econstories on Boom and Bust and Fight of the Century.