Podcast Alley has hundreds of podcasts about anything you can imagine. Choose a genre from the pull-down menu on the top left and listen to something that interests you.
This American Life is a 60 minute weekly radio program produced by National Public Radio in the US. There is an incredible variety of stories on this show, just click the “Radio Archives” link on the top of the page, choose a year and start browsing. The length of the program allows the presenters to speak at a relaxed pace and really explore their subject material sensitively and in depth. One particularly good episode is The Giant Pool of...
The British Library has a really incredible resource: a map of the United Kingdom that you can click on to hear the accents in different regions. It’s really remarkable how different they are, even within the same city! This means that many of the recordings are quite difficult to understand, but sometimes transcripts are provided.
The English Blog is a great place to browse lots of news stories and videos with notes from an English teacher. He updates the site daily with relevant stories and interesting cartoons and videos that show real English in context. There really is a huge amount of material here (search the categories) as well as a lot of links to webistes for English Language Learners (ELL) and podcasts.