Jewish Virtual Library: Abel
- Brief profile of the second son of Adam, with links to Biblical passages.
- http://www.jewishvirtuallibrary.org/jsource/biography/Abel.html

Bible Prophecy: Abel
- Profile of the son of Adam from a joint Lutheran and Catholic bible study project.
- http://www.aboutbibleprophecy.com/p143.htm

Offering of Abel
- The Seventh-Day Adventist position on the second son of Adam.
- http://www.nisbett.com/people/bp-abel.htm

The Murder of Abel
- Paper on the literary sources of the figures of Cain and Abel in the Islamic Qur'an.
- http://answering-islam.org/Quran/Sources/cain.html

Jewish Encyclopedia: Abel
- Comparison of the first shepherd in rabbinic, Hellenistic, and Islamic literature.
- http://www.jewishencyclopedia.com/view.jsp?artid=216&letter=A

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

Catholic Encyclopedia: Abel, Son of Adam
- Commentary on the first murder victim from the traditional Catholic perspective.
- http://www.newadvent.org/cathen/01035c.htm