David's Slaying Goliath In Single Combat - Chapter by the first-century Jewish historian Josephus. - http://www.interhack.net/projects/library/antiquities-jews/b6c9.html
Goliath - Profile of the Philistine warrior from a joint Lutheran and Catholic bible study project. - http://www.aboutbibleprophecy.com/p149.htm
Jewish Encyclopedia: Goliath - Overview of the Philistine giant from the traditional Jewish perspective, including rabbinic commentary. - http://www.jewishencyclopedia.com/view.jsp?artid=336&letter=G