One of my favorite podcasts right now is actually not an HR podcast, but a motivational/inspirational one called Make Shift Happen. There is a book by the same name as well. I found the podcast about the time he had 4 out so far, and I immediately went back to get them all. He is on a journey of his own and it has inspired me to watch him and learn from him. I strongly recommend it!
HR Bartender is a great site with interesting, and frequent, posts about all things HR.
Compensation Cafe has great information about compensation practices, the HR profession, and has been referenced on a few of the podcasts and other resources I reference regularly.