4 links
Catholic Encyclopedia: Spiritism
newadvent.org
History and methods of Spiritism (here distinguished from Spiritualism) and the dangers inherent in its practice and beliefs.
Colin Fry medium for Living TV
network54.com
Is the television medium Colin Fry genuine? Sceptic investigates the claims of mediumship and the charges of fraud made in Psychic News.
Exposing Spiritualism
geocities.com
Photos, newspaper articles, and other materials documenting stage magician and escape artist Harry Houdini's challenges to mediums and Spiritualism.
The Skeptic's Dictionary: spiritualism (spiritism)
skepdic.com
Sceptical view of Spiritualism and its associated parts such as mediumship.