Yes, The Turanga Pages is a porn page...I know, I accidentally clicked an image link to it, thinking it was just another Futurama site...DAMN YOU TFP for linking to it!
EDIT: About Joshua Nussbaum's piece of Crap Art:
The picture originated from a conversation we were having on Neopets (we know each other from a Neopets-related forum). Originally, it was about his profile--he had put a link to his Neopet's lookup on the Neopets forum, and that led me to his profile--and I told him that if there's a link, I'll usually click it. He asked me, "If I put a link to a donation shop in my signature, would you click it?" and I replied that I might. Instead of putting a donation shop link in his signature, he launched his "new donation campaign"--the Crap Art. (In case you're wondering, NP stands for "Neopoints", which is the currency on Neopets.) Hope that cleared things up. (Yes, it was spam art, but we got a few chuckles out of it--it was never intended to be serious. At least, I hope not.)