I swear I remember a similar thread within the last year, but didn't find it searching the archive. So I'll ask again - what sources do you like - sites that I can go to listen to a variety of topics?

The backstory....... I've never had an interest in podcasts until the other day, when I got bored and just had to listen to something. I remembered people talking about NPR and TED.com. So I listened to a couple from each. I was immediately drawn in. So now, I'm probably going to spend way too much time doing that. (It beats TV, I suppose.) Maybe I can listen to them in the shop (when I'm not using a machine).

Your ideas would be much appreciated!

Thanks,
Fred