Show notes, this is almost every podcasters bane. The number one part of podcasting that no one likes seems to be writing show notes. Why? Well from my guess most podcasters don't like writing. Hence the reason they are podcasting, that way they can create content with hopes of not writing as much. So if all your content is spoken shy should a podcast worry about show notes? Why should you worry about show notes? I would put show notes in the category of discoverability. The notes that are put out, help search engines like google, bing, yahoo, to find out if your show is what their searchers are looking for. It allows for people to evaluate whether you are going to be giving them good information.
What do show notes need?
Minimum length of show notes should be about 300 words. The more words you write ,the better, but do not write for Google or any other search engine. People who write just for SEO will eventually get hit with some update. You are seeing people talk about the penguin