Iconography: The Icon FAQ
http://www.orthodoxinfo.com/inquirers/icon_faq.htm
Iconography: A Short Essay on Names and Terminology
http://www.pinfold.com/icons/glossary.htm
Home Page for Iconography Links
http://www.icons.org.uk/
Description of Christian Iconography
http://www.newadvent.org/cathen/07625a.htm
Further Study of Iconography:
Orientale Lumen: Sources for Further Reading on Iconography