The Something Awful Forums have one of the few decent tattoo threads on the internet. I wanted to create a place where it would be easy to see all of the great pieces that turn up over there.
Remember, these people have tried hard to find a picture they want on their body forever, and been kind enough to share the result with everybody. It's personal to them. Taking your own tattoo from flash art is fine, but please don't steal someone else's custom tattoo.