For those of you familiar with iTunes there are some Buffy podcasts floating around which are pretty good if you're into Buffy analyzing & discussion. The things said on the podcasts aren't always agreeable but it's fun to know what others are thinking/saying about Buffy. Either way you should check them out.
http://buffycast.com/
http://www.radiofreesunnydale.com/
http://buffycast.com/
http://www.radiofreesunnydale.com/