7 links
Bible Prophecy: Abel
aboutbibleprophecy.com
Profile of the son of Adam from a joint Lutheran and Catholic bible study project.
Cain and Abel
jrf.org
The Genesis passage regarding the two brothers, in Hebrew with an English translation.
Catholic Encyclopedia: Abel, Son of Adam
newadvent.org
Commentary on the first murder victim from the traditional Catholic perspective.
Jewish Virtual Library: Abel
jewishvirtuallibrary.org
Brief profile of the second son of Adam, with links to Biblical passages.
The Murder of Abel
answering-islam.org
Paper on the literary sources of the figures of Cain and Abel in the Islamic Qur'an.