Encyclopædia Britannica Online [Details]

Since the Encyclopædia Britannica's founding in 1768, Britannica editors have gathered and organized information on thousands of topics for easy retrieval.

  Encyclopedia of Religion, 2nd Ed. [Details]

  Islam and Islamic Study Resources [Details]

Information for the study of Islam, Qur'an, hadith, the Sunnah, Shi'ism and Heterodox Movements Sufism, Islam in the modern world, militant Islam, jihad, Islamist or extremist Muslims, and terrorism, Islam in Iraq, Muslim women, Islamic art, architecture, music, as well as Islamic history, theology, philosophy, and Arabic and other Islamic languages such as Persian, and religion in general.

  Oxford concise dictionary of world religions [Details]

  Oxford dictionary of Islam [Details]

  Shi'ite Encyclopedia [Details]

by the Digital Islamic Library Project