Tsaddikim: Gad 
Presenting the Chassidic position on the son of Jacob, including traditional birth and deathdates.
http://judaicaplus.com/Tzadikim/gad.htmGad
Profile of the son of Jacob from a joint Lutheran and Catholic bible study project.
http://www.aboutbibleprophecy.com/p87.htm
Catholic Encyclopedia: Gad
Commentary on the son of Jacob from the traditional Catholic perspective.
http://www.newadvent.org/cathen/06331b.htm
Jewish Encyclopedia: Gad
Overview of the son of Jacob from the traditional Jewish perspective, including rabbinic commentary.
http://www.jewishencyclopedia.com/view.jsp?artid=13&letter=G
Jewish Virtual Library: Gad
Brief profile of the Israelite tribal head, with links to pertinent Torah passages.
http://www.jewishvirtuallibrary.org/jsource/biography/gad.html
