http://www.signmuseum.com/index.html

http://www.smithsonianmag.si.edu/smithsonian/issues98/feb98/bones.html

http://www.aaroads.com/california/index.html

http://factoryschool.org/content/sounds/poetry/frontenac.html

http://users.aol.com/Donh523/navapage/index.html

http://www.bu.edu/library/training/iarchives.htm