One for the geeks, one for everybody.

First the URL for the geeks: The Windows XP source code - amazingly compact, innit? If you read the code you'll find out why windows takes so much space on your hard disk. And in your registry.

Then the URL for everybody: very nifty photoshops of various animals. I'm partial to #2, #9, and #17. #21 and #37 aren't bad, either.