The Minor Prophets: Malachi - Historical and spiritual overview of the Biblical prophet. - http://www.zianet.com/maxey/Proph13.htm
Tzaddikim: Malachi - Presenting a collection of Chassidic beliefs about the prophet. - http://judaicaplus.com/Tzadikim/malachi.htm
Book of Malachi - The text of the Biblical chapters in Hebrew and English. - http://www.hareidi.org/bible/Malachi.htm
Malachi - Profile of the prophet from a joint Lutheran and Catholic bible study project. - http://www.aboutbibleprophecy.com/p42.htm
Catholic Encyclopedia: Malachias - Commentary on the Biblical prophet from the traditional Catholic perspective. - http://www.newadvent.org/cathen/09562b.htm
Jewish Encyclopedia: Book of Malachi - Overview of the prophet from the traditional Jewish perspective, including rabbinic commentary. - http://www.jewishencyclopedia.com/view.jsp?artid=102&letter=M