You will get a badge on your gear/stats page for every year you support Newgrounds. Being a supporter means you do not have to see ads on your Newgrounds and it generally makes the website hotter and healthier.
Unrelated, but also hot and healthy is one of my favorite sites besides Newgrounds. Poxbox!!! Check out pox's 2013 list challenge. I'm gonna do these challenges this year and you can too! Then we can all go harrass poxpower together!!! Doesn't that sound fun????
Here's an unrelated picture.