Sure, microphones and book narrators have been around a long time. But with a $60 microphone, a computer, a bit of egg crate foam, an Internet connection, and a glass of water and we can record--and distribute--our audiobooks ourselves.
Gone are the days when a publisher could take out an ad, count on a few reviews, and have an author do a couple...
This is where things can get exciting with your book as a podcast as opposed to (or in addition to) an audiobook.
Finally, we can create ads for audiobooks! Here's the news. Here's a walkthrough of how to actually create an ad in BookBub.