Fatwa-Online: An on-line collection of fataawa (Islamic rulings) given by the Council of Senior Scholars in Riyadh; also available to download. Includes historical biographies and brief articles on Islam.
Holy City of Al Madina Al Monawara (Medina): A hyperlinked guide to the history, religious significance, and sacred sites of the second holiest city in Islam.
Holy City of Makkah al-Mukarramah (Mecca): A hyperlinked guide to the history, religious significance, and sacred sites of the holiest city in Islam.
Islam in Saudi Arabia: An account of Islam and its role in the Kingdom;includes a section on Islamism. [Wikipedia]
Islamic Pictures: Site with pictures of Mecca and links about Saudi Arabian culture and religion.
The Religion of Islam: An introduction to Muslim belief and practice produced by the Royal Embassy of Saudi Arabia, Washington, US.