I love how the First Life argument is presented in this video: A Virtual Conversation Overheard
February 26, 2010
July 16, 2009
There is a surprising range of information available there ranging from beginner to even some advanced topics
March 23, 2009
A simple visual object lesson in over-compressing JEPGs.
December 28, 2008
Lots of math resources to be found on YouTube