A lot of us listen to podcasts. It’s enjoyable to listen to people talk about daily or weekly news and opinions while we are sitting at our desk.
Apple has applied for a patent that will allow for podcasts to hyperlink to webpages with additional content or product information. Such examples are sponsor pages. If a podcast throws in a mention of a sponsor, they can add a small cue in the podcast (which can be audible or inaudible) and this will direct the listener to the product page. While that may be annoying to some, a more useful application could be a link to podcast show notes, or additional information. For instance, if the podcaster mentions a recent news article, perhaps they can link to it, so you know what they are referring to.