Why I love the Internet, Volume 2

http://www.stuffonmycat.com
I just have to say that we have plenty of pictures that could go on this site.

http://www.deepskyfrontier.com
Amazingly, Hilariously big website.
"Use the arrow keys to try and move the scroll bar even one pixel. No wait, don't. It'll take more than 3 times your lifespan"

http://drmcninja.com/index.html
The words "Free" and "Comics" are dangerous to be sure. Combine them, and only a few will survive.

http://www.badgerbadgerbadger.com
Don't say we didn't warn you.

Or if you like, type in Diet Coke and Mentos into google and see what you get.
Man this thing is too much!
-D