Search terms used: problem of evil; theodicy
This website contains the writings of the philosopher Peter Kreeft.
This website contains an overview of the problem of evil by Dr. Phillip Irving Mitchell of Dallas Baptist University.
Search terms: theodicy
This website contains the entry in the New Advent Catholic Encyclopedia for "theodicy."
Theodicy by Freiherr von Gottfried Wilhelm Leibniz
This website contains an electronic book written by the philosopher who coined the term "theodicy."