Protestant
Catholic
Catholic Encyclopedia (1907)
Theological Studies (Free Content)
Inside the Vatican: History Channel Documentary about the Vatican
Orthodox
Jewish
The Babylonian Talmud
Islam
The Koran (Translated by J.M. Rodwell, 1876)
A Manual of Hadith (by Maulana Muhammad Ali)
Hadith of Bukhari (organized by Muhammad Ismâ’îl al-Bukhârî)
Inside Mecca: History Channel Documentary about pilgramage to Mecca.
Other
Summa Theologica by St. Thomas Aquinas
The Arminian Magazine Fundamental Wesleyan Society. (Free Content)
Journal of the Evangelical Theological Society — JET (Free Content)
Theology Today it a quarterly ecumenical journal of Christian theology. (Free Content)
Bible Researcher: “Internet Resources for Students of Scripture.”
Beliefnet: “Our mission is to help people like you find, and walk, a spiritual path that will bring comfort, hope, clarity, strength, and happiness.”
Religious Documentaries
From Jesus to Christ: Frontline documentary about early Christianity.
Closer to Truth: Closer To Truth is the definitive series on Cosmos, Consciousness and God, a global journey in search of the vital ideas of existence. Has many interviews with famous philosophers and scientists.
The American Prophet: PBS documentary about Joseph Smith and Mormonism.
The Mormons: PBS documentary about Joseph Smith.
Martin Luther-Driven to Defiance: An Empires Special about the life and legacy of Martin Luther.