They are listed on the World Radio Network home page. For two world bodies, you can listen to United Nations Radio as mentioned above for weekly updates. There are only about a dozen Canadian stations on-line so far, including CBC radio and CBC stereo 24 hours a day. Excellent American news comes out of National Public Radio and the Christian Science Monitor radio network. ABC radio news also provides short news bulletins and the more predictable kind.
Journalists can also find a treasure throve of archived audio material.
I particularly liked listening to the non-politicians such as anthropologist Richard Leakey or 60 Minutes creator Don Hewitt. NPR, the American public broadcaster, and various CBC shows also offer some useful archives. Don't be shy. You don't just have to listen to straight news radio. You can catch your favourite basketball or football team on ESPN .