Debby Bruk hosts the wonderful Homeopathy World Community with lots of shows on vaccines and homeopathy for people. I did weekly shows for a year or so and now am doing monthly shows, usually on the second Wed. It is a call in and internet chat show, so you can call in with your questions.
This show I talked of selecting potency and administration. We also had a caller with questions about pancreatitis and renal failure in a 16 year old cat.
While there, you can check out all the other shows.