Because, it's at the bottom of the forums under the heading "Birthdays".
Also, thanks everyone. My day was pretty relaxing, save for my doctor's appointment at 10am. I got some news, mostly bad, about my ankle. I'm suffering from tendinitis, and yes, it's torn to some degree. So, the doctor is going to try to help me by using casts to gradually stretch one of my other tendons in the back of my leg that runs to the Achilles tendon, and with luck, relieve the pressure on the torn tendon. If it fails though, it means surgery. Which means I'll be out of work for a while.
So...happy birthday me. :\