Just an aside, have you ever thought about setting up a wiki maybe sometime in the future when more ground has been covered with the podcast. I know how much effort goes into running one and it might be too time consuming what with the research, recording time and looking after a couple of websites already. Maybe that's not the direction you want to take but just a suggestion.
I think this is a great idea. It could be totally open to all listeners to edit, but administrated by the members!! Great thinking :)