PoS-Roots - Yahoo group discussing the origins of the Priory of Sion, and their connections to various religious communities throughout history. - http://groups.yahoo.com/group/PoS-Roots/
Priory of Sion Archives of Paul Smith - Articles on The Priory of Sion, Alpha Galates, 'Vaincre', French Esoterica, Rennes-le-Chateau, Rosicrucianism, and Freemasonry. - http://priory-of-sion.com
Priory of Sion - The PoSML is set up as a discussion of issues and theories arising from the book "Holy Blood, Holy Grail" and similar works. - http://groups.yahoo.com/group/priory-of-sion/
Barbara Young, Mystical Knight Templar - The information found in this site is a 20-year research effort that lends understanding to the underlying motivation and spiritual purpose of the pre-inquisition Templar Orders. - http://www.templechryses.org/
The Knights Templar - Provides a history, articles and discussion on the Prieure de Sion. - http://www.crystalinks.com/templars.html