They recommend Audacity for recording and Ourmedia.org for file storage. Sounds like they could really use Classcaster: record over the phone and post directly to the blog.
LibriVox
“LibriVox is an open source audio-literary attempt to harness the power of the many to record and disseminate, in podcast form, books from the public domain. It works like this: a book is chosen, then *you*, the volunteers, read and record one or more chapters.“