Holy Shroud Guild: http://www.shroud.org/library.html Details of markings on the Shroud: http://www.shroud.org/lib00002.html General Information on Shroud: http://www.shroudofturin.com Scientific analysis of the Shroud: http://www.shroudofturin.com/Science1.html Carbon Dating, techniques: http://www.c14dating.com/agecalc.html Carbon Dating, suspect: http://www.modomedia.com/quantum/carbondating.html Carbon Dating, suspect: http://www.centerfirstamericans.com/cat.html