Association of Religion Data Archives 
BBC: Religions
Holidays and Observances
Interfaith Calendar
Internet Encyclopedia of Philosophy 
Internet Medeival Sourcebook
Internet Sacred Text Archive
LGBT Religious Archives Network 
National Study of Youth and Religion (US) 
Pluralism Project
Religion Facts
Religious Freedom Center
Religious Tolerance
What Canadians Really Believe 

American Atheism
American Humanist Association
Atheist Alliance International
British Humanist Association
National Secular Society (UK)
The Secular Web

About Buddha
Access to Insight 
Ancient History Encyclopedia: Short History of the Buddhist Schools
Buddha Sutras
Buddhist Channel 
A Collection of Buddhist Stories
Dhamma Wiki
Metropolitan Museum of Art: Buddhism & Buddhist Art
Tibetan Buddhist Wall Paintings
View on Buddhism 

Bible Research
Bible Study Tools
Catholic Catechism
Catholic Encyclopedia
Catholic Online: Saints
Catholic Social Teaching
Christian Classics Etherial Library
Creeds of Christendom
Digital Vatican Library
Early Christian Writings
Gnosis Archive 
Hutterite Brethern 
Into His Own: Perspective in the World of Jesus
Manifold Greatness: The Creation and Afterlife of the King James Bible
New Testament Gateway
Synoptic Bible Primer
Understand Christianity
United Church of Canada: Historical Timeline 
Bhagavad Gita
The Heart of Hinduism
Himalayan Academy
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Hindu Online
Indian Heritage: Hindu Gods & Goddesses
Metropolitan Museum of Art: Hinduism & Hindu Art 

1001 Inventions
Al Islam
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International Association of Sufism 
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Islamopedia Online
Internet Medieval Sourcebook: Islam
Introduction to Islam: An Online Text
Muslim Association of Canada 
Muslim Heritage
A New Life in a New Land: The Muslim Experience of Canada 
Nimatullahi Sufi Order
Pew Research Center: The World's Muslims
Religion of Islam
Spirit of Islam
Sunni-Shia Divide

Center for Jewish History
Digital Dead Sea Scrolls
Jewish Holiday Calendar & Date Converter
Jewish Virtual Library
Judaica European
Judaism 101
Library & Archives Canada: Jews 
My Jewish Learning 
Reform Judaism
What Does Kosher Mean?

Open Access Journals
Note: Peer-reviewed journals are marked with a graduation cap

Approaching Religion
Arab World English Journal  
Hinduism Today
Ilorin Journal of Religious Studies 
Indonesian Journal of Islam and Muslim Societies 
International Journal of Dharma Studies 
Journal of Arabic and Islamic Studies  
Journal of Catholic Education  
Journal of Global Buddhism 
Journal of Islamic Thought
Journal of Religion & Society  
Journal of Religion, Media and Digital Culture
Relegere: Studies in Religion and Reception
Religions: An Open Access Theology Journal
Secularism and Non-Religion
Spirituality Studies
Western Buddhist Review

British Library: Sikh Manuscripts 
Sikh Heritage Museum of Canada 
Sikh Net
Sikh Museum Initiative
Sikh Zone
Sikh World
Sikhism Guide
Sikhism: Thy Name is Love and Sacrifice
Sri Granth

Student Sites
BBC Bitesize: Religious Studies
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United Religions Initiative: Kids
World Religions for Kids