for those who don't know, a podcast is essentially a free internet radio programme, which you can download and listen to at your leisure - if you subscribe to it (through - say iTunes) you will automatically recieve every new episode. There are many really good folk podcasts, but specifically, you should try these guys out, they broadcast from edinburgh (scotland)

www.gardensessions.co.uk

they do an hour long podcast every 2 weeks which you can download from their website, i wish it was more often though, because the music is amazing - it's all new artists as well - plus extremely entertaining chat (which unusually, there's not ENOUGH of). fingers crossed they'll change it to weekly someday because it's unbelievably good!!