Death Clock

Death Clock is a very clever website that can add a dark humor to your desktop plus remind you to make healthy choices. You simply fill out a form with your date of birth, BMI, and a couple other facts and voila! a clock appears that counts down how many days left until your death.
Check it out! It also helps you grieve your death in advance so you won't be sad after you die.

http://www.deathclock.com/