The Story of Michal: Beyond Loyalty to Torah 
Commentary on the relationship between King David and his first wife.
http://www.torah.org/learning/women/class65.htmlJewish Encyclopedia: Michal
Overview of King David's first wife from the traditional Jewish perspective, including Talmudic commentary.
http://www.jewishencyclopedia.com/view.jsp?artid=573&letter=M
Michal
A rabbinic exploration of the character of David's first wife, with Midrashic commentary.
http://members.tripod.com/~ohave/chumash/michal.htm
The Affection And Care Of Jonathan And The Contrivances Of Michal
Chapter on the devotion of David's friend and wife by the first-century Jewish historian Josephus.
http://www.interhack.net/projects/library/antiquities-jews/b6c11.html
