http://www.podcastjuice.jp/ is a great Japanese podcast directory. The majority of my subscriptions (besides JapanesePod101) are from this site because even though I don't understand more than 8% of what they're saying, sometimes I'm just not in the mood to hear any English at all when I'm serious about my learning, and I start to learn meanings from the ways that people say things, peppered with the few words that I do understand.
My favorite Japanese podcasts are:
Tokyo Local
and for something a little stranger/more fun/edgier:
i-Morley
