I found a site I really like called Better Explained. It's run by a very nice guy named Kalid Azad, who posts excellent explanations of concepts in programming and mathematics. For example, his explanation of natural log was excellent.

And, today's awesome webcomic is the well-known Dr. McNinja, by Chris Hastings. How he's managed to keep this concept funny after several years is beyond my comprehension. He's just that good.