Ok, nowadays we have a lot of podcasts in nearly everypage, however, I want to offer some addresses of pages that deal exclusively with conversations in English or that have a good amount of them...
(I also include the links in the section YOU already know...)
English Conversations
Everyday English in Conversation
Better@English (with vocabulary, and much more, very good page)
OMAudio (at the end of the page, a lot of adverts on the top)