BBC - Religions
Guide to the Religions of the World. Featured religions include: Atheism, Buddhism, Christianity, Hinduism, Islam, Jainism, Jehovah's Witnesses, Judaism, Mormon, Paganism, Rastafari, Shinto, Sikhism, Taoism, Unitarianism, Zoroastrianism.

Beliefnet.com
Religions covered: Baha'i, Buddhism, Christianity, Catholic, Eastern Orthodox, Mormon, Protestant, Hinduism, Islam, Jainism, Judaism, Nation of Islam, Pagan & Earth-Based, Secular Philosophies, Scientology, Shinto, Sikhism, Taoism, Unitarian Universalist, and Zoroastrianism.

History of Islam, Christianity, Judaism, Buddhism, Hinduism, Sikhism
Major emphasis: Quran, Quran Facts, Quran Laws, Quran Dictionary, Muslim News, Quran Recitation, Quranic Search Engine, Religion Islam, Muslim, Islam Glossary, Muslim Scientist, Women Islam, Economy Islam, Muslim Name, History Islam, Religious Thoughts in Islam, Islam Holy Days, and Beliefs: Fundamental of Muslim Faith.

Virtual Religion Index
Links to resources on world religions, including Biblical Studies, Buddhist Tradition, Christian Tradition, Comparative Religion, East Asia, Ethics & Moral Values, Greco-Roman Studies, Hindu Studies, Islamic Tradition, Judaic Studies, Philosophy & Theology, Psychology of Religion, and more.