Training Materials From The Canadian Society for Independent Radio Production

Bottom line -- radio is about ideas. It's about skills. It's about learning -- and a big part of it is about teaching ourselves.

Victoria Fenner hits the nail on the head in the introduction to the training section of the Canadian Society for Independent Radio Production.
If you are interested in audio, you should check out Training Materials From The Canadian Society for Independent Radio Production. They have articles that can help you create compelling tracks and useful information about sound, soundscapes and audio documentary as well as radio drama and art.