Ultra-skeptic (cynic) James ‘The Amazing’ Randi has made his book, An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural available online at the JREF website.
This Internet version will contain many more illustrations than the printed one, and as time goes on we intend to add more categories and definitions, as well. If you have any suggestions along this line, we invite them eagerly. Please be sure that what you offer us is “in tune” with the subjects we handle, and when possible, give us a reference for the item.
Perhaps Wikipedia might be a more useful resource for some of these topics, but good on Randi for putting it online anyhow.
