I don't but podcast but I LOVE to listen to them. Not only the NPR ones but a bunch of knitting ones (fave: stashandburn) and one with two friends, both working moms, with two kids each (manicmommies). This one has quite the following - they now have annual gatherings. Last year the manicmommies took a cruise together and this fall they are meeting in Napa, CA. They are pretty mainstream but talk about so many different issues and have great guests on too. I find my podcasts, all free, on itunes. The two I mentioned above also have their own sites where you can download from.