Ralston360 has created a video/podcast that is a really good primer for anyone wondering why podcasts would matter to their business.
Overall the content is professional, informative, clear, and not salesy. They provide some great demographic information in the “who listens to podcasts”. They also provide some great examples of how podcasts are being used in the “why should marketers care” section, and offer some great examples of big companies sponsoring podcasts like Lexas, and Gatorade
My only critique is they beat the ipod interface metaphor to death except for the all important “fast forward”. From the standpoint of social media there are no comments on the page, no trackback, and no navigation beyond the ipod interface.