Hi, I will try to share pointers to other sources of information rather than replicate them here.
I throw a lot of my best information in my delicious account using the tag 'podcasting' - http://del.icio.us/amiddlet50/podcasting
I am involved in several podcasts, but the Learning, Teaching and Assessment in Higher Education (http://ltapodcast.blogspot.com/) podcast is probably the most useful one for sharing here. Trying to find the right name for this was always a problem, but it stuck. Mostly it features discussions with people who I encounter here at SHU who are doing interesting things, but I occasionally I try to use it as a sandbox for new podcasting approaches.
My blog, Reflections on Educational Podcasting, has been on the go for two or three years. If I did less for PPP I might spend more time updating it (!) but it does chart my own exploration and development of educational podcasting over that time. http://podcasting-for-lta.blogspot.com/feeds/posts/default
I can now see that the rest of the foreseable for me will be taken up in editing this book we've started together! What a brilliant learning opportunity...