Writing Excuses episodes are 20 minutes long, and geared more for experienced writers. Each episode has an Audible ad right in the middle of it, which doesn’t bug some, but annoys the hell out of me.
I Should Be Writing tends to be short as well. However, she tends to take long pauses during her recording and I find she whines a fair bit at times.
Fangs and Fonts is a lot longer, often one hour long. We tend to be pretty good about discussing writing though the odd time we get off track. (this doesn’t last too long) We have a wide variety of experience levels amongst the hosts and we all write widely different genres. Though the cast itself isn’t furry, since the hosts are we tend to bring furry into whatever topic we talk about.
Dead Robots Society was one of the podcasts I cut my teeth on. They are about an hour long. Once you get past their talk of their own works, they tend to have some pretty informative talks. Recently they did a good couple casts on self marketing, taxes (in the States), and discoverability.
Unsheathed is easily the first and foremost podcast on furry (erotic) writing. Though it looks like they have stalled at this point, they have a large amount of back recorded episodes that contain a lot of useful information. This podcast and Dead Robots were the two casts that got me back into writing and I owe them for that. Frane and Gold are excellent hosts that made me laugh out loud more than once.
Writers on Writing recorded at a university, I couldn’t get past the first ten minutes of the podcast. One hosts interviews a writer/publisher/editor and they often do two guests per episode. Very much has the feel of university radio and each episode tends to be rather long. If I had more time I would give it another go, but with all of the above, I don’t right now.
Grammar Girl has lots of useful information, episodes tend to be short, and all in all I really enjoy how she manages to keep the episodes entertaining as well as informative. Personal favorite was the one on the Canadian accent and why it buggers with Americans.