I know this is NTR and not OTR - but I think (if I may be so bold) you should include the better OTR sites - esp. the ones with shows one can download.
sites such as: http://www.themonsterclub.com/radiolibrary.htm
I think (again if not being too uppity) you should give links to maybe BBC/CBC/ABC (Australia Broadcasting Corp) and NZ sites with RadioDrama links to their works. I can't provide the URLs but I have run across them in my travels for newtime radioplays.
and I have a crapload of respect and love Jim French's work - Imagination Theater - I personally love his Crisis series. I see no link to his work ;-(.
- thats all.
have a great day!