Most of the search directories no longer worked for me.  I finally lucked out with the Education Podcast Nework.  I found a podcast by David Warlick, whom I had heard about.  He interviewed a Bombay school librarian, Ann Krembs, about creating a 
virtual library.  
It looks much like Joyce Valenza's but with a few twists.  
I then went to my google reader and located David Warlick's podcast feed and added it to my other feeds so that I can automatically see what he does next.