Oxford Dictionary of Islam Vivid, authoritative entries on hundreds of topics.
Credo Reference A collection of encyclopedias, dictionaries, and handbooks for Middle East topics.
Middle East Virtual Library Portal for Middle East and Islamic Studies providing access to online information.
Encyclopedia Iranica Focus on Iranian civilization in the Middle East, the Caucasus, Central Asia and the Indian Subcontinent.
Encyclopedia of Islam and the Muslim World Overview of Islam's role in the modern world and development over the last 13 centuries.