[qazwsx]

I found these, they seem pretty cool sites.

http://www.good.is/infographics

http://www.informationisbeautiful.net/

I own David McCandless' book, there's a hell of a lot more diagrams in it, and of a much better quality than the site. I suggest people borrow it if possible, it's interesting, but not really worth the price.

[General Battuta]

Latter one is one of my favorite webotrons