Saadia Gaon
Links
Saadya
http://plato.stanford.edu/entries/saadya/
Detailed study of this medieval thinker, from the Stanford Encyclopedia of Philosophy. By Sarah Pessin.
Jewish Virtual Library: Saadia Gaon
http://www.us-israel.org/jsource/biography/SaadiaGaon.html
Concise biography noting his place in Jewish history.
Jewish Encyclopedia: Saadia Ben Joseph
http://www.jewishencyclopedia.com/view.jsp?artid=4&letter=S
Detailed 1906 study of this exilarch's views, by Wilhelm Bacher.
Saadia Gaon's Kavod Nivra and Its Place in His Philosophy of Judaism
http://www.metatronics.net/lit/saadia.html
A 1994 paper by Jay Michaelson, analyzing Saadia's reinterpretation of revelation.