Can and Abel - Wikipedia
- Overview of the first murder with outline of the story, depictions over history and references.
- http://en.wikipedia.org/wiki/Cain_and_Abel

Jewish Virtual Library: Cain
- Brief profile of the Biblical killer, with links to pertinent Torah passages.
- http://www.jewishvirtuallibrary.org/jsource/biography/cain.html

Cain
- Profile of the wicked son of Adam from a joint Lutheran and Catholic bible study project.
- http://www.aboutbibleprophecy.com/p144.htm

The Secret of Happiness and Other Insights from Cain and Abel
- Analysis of the first murder based on the Jewish Talmud.
- http://www.aish.com/literacy/exploring/Cain_and_Abel_Happiness_and_Other_Insights.asp

The Mark of Cain
- Evangelical Christian commentary on Cain's guilt and God's mercy.
- http://www.pbc.org/dp/stedman/genesis/0322.html

Jewish Encyclopedia: Cain
- Overview of the first murderer from the traditional Jewish perspective, including apocrypha and Talmudic commentary.
- http://www.jewishencyclopedia.com/view.jsp?artid=27&letter=C

Comparative Index to Islam: Cain and Abel
- Discusses Islamic beliefs about the two brothers, including the folk tradition that they fought over women.
- http://answering-islam.org/Index/C/cain_and_abel.html

Cain and Abel
- Biblical biography of the rivalrous siblings.
- http://www.execulink.com/~wblank/cainabel.htm

Catholic Encyclopedia: Cain
- Commentary on the Biblical killer from the traditional Catholic perspective.
- http://www.newadvent.org/cathen/03142b.htm