If you're producing content for Podiobooks.com, please note that Evo has made a pretty serious overhaul to the process. So much so, in fact, that he created an entirely new and much more well-rounded book on the topic.
It has the rather audacious title The Definitive Guide To Making Serialized Audiobooks For Podiobooks.com
and can be found here: --> https://leanpub.com/serialized-audiobooks-definitive-guide/
There's a nifty 13-point checklist and a brand-new hardware/software buying guide. He also blended in some helpful tips and tricks, as well as more "philosophy" behind the concept.
And yes, it's still free. Just like the books at Podiobooks.com. So if you're looking for some fun (?) reading about the process, still in progress, just starting out, or curious what's new; now you have it!