* University of Virginia: Salem Witch Trials (includes former "Massachusetts Historical Society" link)* Salem Witchcraft, Volumes I and II, by Charles Upham, 1867, from Project Gutenberg* Salem Witch Trials: The World Behind the Hysteria* SalemWitchTrials.com essays, biographies of the accused and afflicted* The Wonders of the Invisible World.
Article about ergot-infected grains, ergotism and how it is prevented today* PBS Secrets of the Dead: The Witches Curse (concerning the Salem trials and ergot)* Salem Witchcraft, Volumes I and II, by Charles Upham, 1867* Salem Witch Trials:The World Behind the Hysteria* SalemWitchTrials.com essays, biographies of the accused and afflicted