1938 War of the Worlds Broadcast
Wavs of the famous Orson Welles and The Mercury Theatre On-The-Air radio broadcast of H.G. Wells' War of the Worlds.
http://www.earthstation1.com/wotw.html

Spud Server
The potato powered web server hoax that fooled USA Today and the BBC.
http://totl.net/Spud

Cliff Pickover's Internet Encyclopedia of Hoaxes
Discusses a number of scientific and medical hoaxes, including Mary Toft and the Rabbit Babies (about which he authored a book). Includes links and images.
http://www.pickover.com/hoax.html

Museum of Hoaxes
Extensive collection of history's most famous hoaxes and April Fool's pranks. Listed by date and category. Includes bibliographic references.
http://www.museumofhoaxes.com

Tracking the White Salamander
Online Book telling the story of Mark Hoffman who forged Mormon documents and was convicted of murder
http://www.utlm.org/onlinebooks/trackingcontents.htm

The Hoax Files
Assorted collection of hoaxes, including sports hoaxes and art forgeries
http://www.infoplease.com/spot/hoax1.html

Skeptic's Dictionary: Frauds and Hoaxes
Discussion of 22 hoaxes, including Cardiff Giant, crop circles, and the Philadelphia Experiment
http://skepdic.com/tifraud.html

MIT IHTFP Hack Gallery
The MIT Gallery of Hacks (Interesting Hacks To Fascinate People). Hoaxes and pranks perpetrated at the Massachusetts Institute of Technology.
http://hacks.mit.edu/Hacks

Don't Be Fooled: Strange Hoaxes That Endure
Committee for the Scientific Investigation of Claims of the Paranormal article that discusses ten hoaxes, including the Roswell Incident, Cottingley Fairies, Amityville Horror, and psychic surgery.
http://www.csicop.org/articles/april_fools_1998/

History Buff : "Hoaxes in Journalism" Articles
Offers six articles on hoaxes, including petrification hoaxes and the day they almost sawed off Manhattan.
http://www.historybuff.com/library/refhoaxes.html

Art and UFO
A study about the alleged UFOs in Renaissance paintings. The "strange flying objects" someone find in ancient art are only sacred art symbols, not UFOs.
http://www.sprezzatura.it/Arte/Arte_UFO.htm

Cassiopaea
Bogdanovs affaire: Or, Has Physics been bitten by reverse Alan Sokal hoax? Discussion and correspondence.
http://www.cassiopaea.org/cass/bogdanovs.htm

Piltdown Man
Piltdown man was one of the most famous hoaxes in science. Covers the history of the hoax, its reception by the paleontological community, how the hoax was executed, its exposure, myths and misconceptions, and theories about the perpetrator.
http://home.tiac.net/~cri_a/piltdown/piltdown.html

April Fools' Special: History's Hoaxes
National Geographic News has compiled a listing of some of the greatest hoaxes in history.
http://news.nationalgeographic.com/news/2003/03/0331_030401_aprilfool.html

Bibliography of Hoaxes
Bibliography of books about hoaxes.
http://www.lhup.edu/~dsimanek/hoaxbib.htm

Camel Spiders Myth
Pictures and information provide facts to debunk wild internet rumors about this spider.
http://www.camelspiders.net/

Cottingley Fairies Hoax
The story and photos of the nonexistent Cottingley fairies.
http://www.cottingleyconnect.org.uk/fairies.htm

SCIgen - An Automatic Computer Science Paper Generator
SCIgen is a program that generates random computer science research papers, including graphs, figures, and citations. It uses a hand-written context-free grammar to form all elements of the papers. Generated papers are meant for amusement.
http://pdos.csail.mit.edu/scigen/