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
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
Catholic Encyclopedia: Gad - Commentary on the son of Jacob from the traditional Catholic perspective. - http://www.newadvent.org/cathen/06331b.htm
Gad - Profile of the son of Jacob from a joint Lutheran and Catholic bible study project. - http://www.aboutbibleprophecy.com/p87.htm
Tsaddikim: Gad - Presenting the Chassidic position on the son of Jacob, including traditional birth and deathdates. - http://judaicaplus.com/Tzadikim/gad.htm