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AntiPolygraph.org, a website critical of polygraphy

History of the Polygraph  by Jim Fisher

Interviewing with an Intelligence Agency First person account of NSA interview (including polygraph)

The Polygraph Museum Historical photographs and descriptions of polygraph instruments.

Technology of Truth by Ken Alder. Magazine article about the history of the lie detector.

The North American Polygraph and Psychophysiology: Disinterested, Uninterested, and Interested Perspectives  by John J. Furedy, International Journal of Psychophysiology, Spring/Summer 1996

Trial By Ordeal? Polygraph Testing In Australia

New U.S. weapon: Hand-held lie detector, MSNBC April 9, 2008.

"Thought Wave Lie Detector Measures Current in Nerves" Popular Mechanics, July 1937