Energy Fiend is a website a friend of mine sent me. It's a different kind of blog. First you can find out how much caffeine is in some of your favourite food and drink. Then you can find out how much of your favourite caffeinated drink it would take to kill you. If that's not enough, you can also find out how much of your favourite caffeinated food would put you down.
Naturally you'd be feeling pretty ill way way before you get anywhere near that lethal dose. Kind of fun to see how much it would take though. 291 cans of Sunkist Orange Soda would put me down. Who knew!