Rotten.com

Rotten.com was a shock site that collected real pictures of dead people, disgusting diseases, deformed bodies, and more. After a long period of operation, the site is now closed. Rotten.com was one of the first shock sites ever created on the Internet. Pictures were largely submitted by the site's userbase.

PenisBird
PenisBird was a shock picture originally posted to Rotten.com in 1999, displaying a picture of a Scarlet Macaw standing on a man's erect penis. An edited GIF of this picture showing the bird rubbing the man's penis and semen discharging from it was featured on Offended and similar sites.

History
The website was first registered in 1996, and was hosted by a person named "Soylent". He made a program that could easily identify unregistered internet domain names consisting of a single dictionary word. After some searching, he found the word Rotten was one of these unclaimed names, so he later went on to register Rotten.com. Rotten.com postured itself as an online free speech platform, in a time where Internet censorship laws and regulations had begun to restrict access to material online.

The site received a lot of attention and coverage following an incident in which the site posted supposed images of medical personnel recovering Princess Diana's body from her fatal car accident. This picture was eventually revealed to be fake. The website was also one of the first websites to publish images of jumpers from the September 11 terrorist attack, under the title 'Swan Dive'.

The Rotten Library
The site also has a Library page, which is an encyclopedia that supplements the website. The Library consists of hundreds of articles about culture, art, crime, and more. The Rotten Library doesn't contain gruesome images.

Link
NOTE : The following shock site contains extremely graphic images!
 * Wikipedia Page: en.wikipedia.org/wiki/Rotten.com
 * web.archive.org/web/20040113023130/rotten.com/
 * PenisBird: web.archive.org/web/19991002221121/smoke.rotten.com/bird/