Augustine of Hippo
http://ccat.sas.upenn.edu/jod/augustine.html
University of Pennsylvania's site, with links to texts and biographical information. Contains images and a variety of research links. It includes the logs of Internet seminars held on Augustine in the mid-1990s.
The Internet Encyclopedia of Philosophy
http://www.iep.utm.edu/a/augustin.htm
The IEP's biography and brief analysis of Augustine's works. Contains information about Manichaeism and Donatism.
Encyclopedia Britannica article on Manichaeism
http://www-rcf.usc.edu/~sbriggs/Britannica/manichaeism.htm
An excellent description of Manichaeism.
African Christianity
http://www.bethel.edu/~letnie/AfricanChristianity/WNADonatism.html
A comprehensive site explaining Donatism and offering an interesting discussion of Numidian Christianity.
Stanford University Encyclopedia of Philosophy
http://plato.stanford.edu/entries/augustine/
Stanford's abstract on Augustine. Refers to relevant Latin texts, with a long list of secondary sources.
