The fifth episode of the podcast I host for Hill & Knowlton - Connected Conversation - is a quick discussion of the strengths and weaknesses of podcasting as a tool for company communications. (Basic information about podcasting for neophytes can be viewed here.)
In our short (podcasts should be short from my perspective) podcast Brendan Hodgson suggests a number of criteria for deciding when a podcast might add something to a public relations effort . . . even though his personal perspective is to reserve his iPod for music listening only.