Classical Free is an online virtual academy where our logic and rhetoric texts are used.
Cassiodorus.org is an education resource and tutorial site which Peter Roise runs personally.
Exodus Provisions is a full service book and curriculum service offering new and used books. Power of Persuasion is also available through them.
Online Bible is a freeware searchable Bible program with lots of readily available add-ons.
Christian Classics Ethereal Library is an online library that seems to include all the volumes of the "Church Fathers" set.
AVLUX is top notch web service. The webmaster is great, especially if you need some help translating Greek.