xkcd - A Webcomic - Base System
http://xkcd.com/540/

Dating used to be so simple LOL

Genius

Illustration of why curveballs seem to suddenly drop.

Optical illusion

Our illusions suggest that the perceived “break” may be caused by the transition from the central visual system to the peripheral visual system. Like a curveball, the spinning disks in the illusions appear to abruptly change direction when an observer switches from foveal to peripheral viewing.

"Essentially, this site is what I'd have been doing when I was 12 years old had the Internet and Photoshop been available to me in the eighties." Me, too.

Tons of baseball infographics, for every kind of Moneyball fan.