With school starting (or started), it seems salutary to alert the teachers who might (hopefully) be reading rc to some online educational resources they may have missed/forgotten about over the summer/were unaware of:

First, we should mention the eClassics (a.k.a. eLatin eGreek eLearn) network, where one will find a nice repository of teacher-made (and student-made) audio visual items, forums, blogs, etc ...

Also (very) worthy of note is the recent update to Dr. J's Audio-Visual Classics Database and her Illustrated Guide to the Classical World. The former is useful if you're looking for audio visual materials to show in class; it grew out of an article in Classical World and is a searchable. The latter is still a work in progress, but there are links to some very nice photos and the like which teachers should find useful ...