SpokenWord.org aggregates podcasts, almost all of which are free, and makes it easy for users to export them to, say, iTunes. It’s a non-profit site and is all about the openness. (Disclosure: I’m on its board.) Now SpokenWord is looking for volunteers to curate podcast feeds and episodes in topics that interest them. Their curated collections will be the main feature at the SpokenWord site, because nothing knows what’s interesting to humans better than other humans do. Details here.