Probing podcasting from the professionals

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"In previous Auricle articles I've alluded to the Internet and intranets as e-learning filling stations and, so, I thought it was time to engage with podcasting as one way of 'filling up'. For this article I was particularly interested in tracking down podcasts and raw MP3 files with high production values. I know, there's some real gems in amateur sites with access to limited production facilities or expertise, or in conference/presentation recordings, but some podcasts engage and involve because they have the listeners of the recording in mind and so 'speak' to their particular audience."