It's neat to watch an idea grown and hit critical mass and podcasting about religion certainly seems to be doing just that. The Godcast Network seems to have about 16 shows, a comment call-in line and even a show called The Klingon Word.
Each show has its own archives and some of them go right back to October of 2004 which is the month that many credit as the birth of podcasting proper.
We should all have such a large archive of material.