Adherents.com.
A comprehensive source for statistics on religious adherents worldwide.

Association for Research and Enlightenment (ARE).
A not-for-profit organization, founded in 1931 by Edgar Cayce (1877-1945), to research and explore transpersonal subjects such as holistic health, ancient mysteries, personal spirituality, dreams and dream interpretation, intuition, and philosophy and reincarnation.

Association of Religious Data Archives.
This side contains a collection of quantitative survey data on churches and church membership, religious professionals, and religious groups. Data sets available for download. Data included in the ARDA are submitted by the foremost religion scholars and research centers in the world. Currently housed in the Social Science Research Institute at the Pennsylvania State University, the ARDA is funded by the Lilly Endowment, the John Templeton Foundation, and the Pennsylvania State University.

Buddhism.

Carlos Castaneda's Magical Passes.
Philosophy and teachings of don Juan Matus, a Yaqui Indian from Yuma, Arizona, and Sonora, Mexico, and heir to a lineage of seers originating in Mexico of ancient times.

Christianity.

Ethics.

Egyptian Book of the Dead - The Papyrus Of Ani.
Translated by Sir E. A. Wallis Budge, the full text of the complete document.

Hinduism.

Islam.

Judaism.

Philosophy of Science Archive.
From the University of Pittsburgh, this archive contains over 2,000 full-text documents related to the philosophy of science. Search by keyword or browse by subject, year or conference. You can also view the latest editions or use the advanced search to narrow by author, title, date and more.

Religious Tolerance.
Information about 40 organized religions and faith groups.

Sacred Text Archive.
Includes links to sacred literature from cultures including African bushmen, Wicca, and Zoroastrianism. Includes the full text of such documents as The Malleus Maleficarum, Native American texts and more.

Stanford Encyclopedia of Philosophy.
All entries are refereed before they are made public. Search by keyword or alphabetically.

Taoism.

Vodou.
From the Sacred Arts of Haitian Vodou at the American Museum of Natural History.

Wicca.

Zen.