As much as I like listening to Glen talk, I'm taken aback by the sudden prevalence of podcasts. To me, they just seem lazy, a way to avoid reducing raw material to effective text and photos, and I just don't click on them. I hope they won't become common at BPL, since I'll never start using them due to the amount of time they take relative to the benefits they yield, and when one appears in an otherwise useful information source, I leave with the feeling that I've likely missed out on some critical information due to a lack of editorial effort.
Sorry to podcast and video fans, but they're not very useful for most things, and are used way too much. It's pretty rare that they have something to convey that isn't managed more efficiently and effectively with text and photos. But this is from someone who only bothers to watch television for major wars and part of the Summer Olympics.
Let me try to make that sound more like a constructive suggestion. I find video and audio material to be more useful as illustrations, much as a photo or table would be used. Audio is appropriately used to illustrate such things as a musical example. Video might be used effectively to illustrate a complex manipulation of some object (e.g., "this is how I quickly turn my poncho into a shelter when it's time to bed down in the rain"), but it's probably nearly always a good idea to describe the operation in text as well (e.g., "first grab the edge of the poncho..."). The video or audio material can then be used after the reader makes the decision, based on the text, whether the described contents warrant the "multimedia" support and whether they wish to invest the time for that specific purpose at the decision moment.