The Sins of King David - Excerpts from a dissertation on the representation of the powerful monarch in the books of Samuel. - http://fontes.lstc.edu/~rklein/Documents/sinsdave.htm
David - General biography of the Biblical king. - http://en.wikipedia.org/wiki/David
Jewish Virtual Library: David - Overview of the beloved, yet flawed, king of Israel. - http://www.jewishvirtuallibrary.org/jsource/biography/David.html
David the King - Commentary on the biblical ruler and his importance to Jewish history. - http://www.aish.com/literacy/jewishhistory/Crash_Course_in_Jewish_History_Part_18_-_David_The_King.asp
King David and the Psalms (Tehilim) - Rabbinic commentary on David as primarily a spiritual leader and only secondarily the warrior-king of popular legend. - http://www.torah.org/learning/basics/primer/torah/psalms.html
Jewish Encyclopedia: David - Overview of the warrior, poet, and king from the traditional Jewish perspective, including apocrypha and Talmudic commentary. - http://www.jewishencyclopedia.com/view.jsp?artid=82&letter=D
Tsaddikim: David HaMelech - A collection of Chassidic traditions about the second king of Israel. - http://judaicaplus.com/tzadikim/kingdavid.htm
Comparative Index to Islam: David (Daud) - Highlights Islamic beliefs about the King of Israel, with Koranic references. - http://answering-islam.org/Index/D/david.html
David: An Ambitious Man? - A Baptist perspective on the life of the Israelite king. - http://www.evangelbaptist.org/highschool/lessons/david.htm
David and Bathsheba - Essay discussing David's adultery and forgiveness from a Christian point of view. - http://www.case-studies.com/biblestudies/david1.htm
King David - Profile of the Biblical leader of Israel and his importance to Judaism. - http://judaism.about.com/library/glossary/bldef-p_david.htm
Catholic Encyclopedia: King David - Commentary on the Biblical monarch from the traditional Catholic perspective. - http://www.newadvent.org/cathen/04642b.htm