An amasing collection of all sorts of hoaxes is at Museum of Hoaxes. There you can find anything and everything that looked or sound like a real thing. Take a couple of hoax photo tests and see how good you are. You can also see some of the test pictures in the gallery with descriptions. Check out the list of hoax websites, which feature among many the first and the last pages of the Internet.
…and there is much more of course…