Imam Reza (A.S.) Network
- A collection of articles and resources on Islam and the Qur'an. Includes substantial information about the life and times of Imam Reza (the eighth Imam), and his shrine at Mashhad; with a directory of links and contacts.
- http://www.imamreza.net/

Imam Ali al-Ridha
- A collection of articles and audio resources about the Eighth Imam (according to the traditions of the Twelvers).
- http://al-islam.org/topical.php?sid=305657393&cat=160

Ali r-Rida
- Profile of the Eighth Imam in the Twelver Shia tradition; from the Encyclopedia of the Orient.
- http://i-cias.com/e.o/8thimam.htm