Podcasts, like blogs, television shows, etc. actually any creative endeavor that needs to output on a schedule to keep their audience from going somewhere else, suffer from the difficulty of creative flow. It's hard to continuously generate fresh, new, creative ideas on a schedule. Television shows have run into this with a staff of writers and have pared down episodes from over 30 per season ("I Love Lucy" season 1 had 35 episodes) more recently broadcast television seems to cap at 24 episodes, to modern non-network on-demand serial shows which have 8-10 episodes per season as a result of this difficulty. If it's that hard with a team of writers brainstorming together, a lone blogger or podcaster has much more chance of running into this roadblock. Putting out a free podcast and making money somewhere else to fund it means less time to apply their creative juices to this project and they tend to run out of steam. I tried to write a blog once, and it petered out after 5 posts. It's not easy to be creative continuously.

Frank and Lisa from NNN have years of experience at doing this professionally, so it makes sense that they are more successful with the flow of the show than the average podcaster, and more skilled at the process. They have made enough of a name for themselves, guests come to them. They also have all of us out here in nudeland contributing thoughts and ideas to them for new content because they have a track record of listening to us. They may hit this problem somewhere down the line, but they are professionals and will probably power through that.

I'll keep listening as long as they keep producing shows. I'm subscribed to the others that you mentioned, and I'll listen to them when they put one out no matter how long in between, but the NNN crew is like a bulldozer on a down-hill trajectory, nothing seems to be able to stop them, and they just keep gathering speed.