You definitely should create an audio version of your book, because a lot of people nowadays consume audio while they are driving to work, so many people would rather buy an MP3 or a CD than a book. You should also start doing interviews with the people that surround your book. If your book is on crocheting, invite other crocheting experts to be interviewed, and then feature them on your blog. In turn, have them interview you. Now you have two products—your interview of that person and his or her interview of you. And both of you can sell both of those products. It’s a great way to start building a list, because you can easily offer a half-hour interview for five dollars—or even three dollars if you’re just starting to build your audience.
The more you want to build your audience, the cheaper your products should be (and some of them can even be free). Once you have a good base of readers or listeners and want to start making money, you can increase the price of the products. As you get better known, you’ll be able to charge more and still sell products. That interview that used to sell for three dollars might sell for ten dollars now.
You can find opportunities for audio products everywhere, because everybody has a story to tell. Everybody has something to offer, and you could sit next to almost anybody, even on a street corner, and have a great conversation come out of it. The other day, while I was driving, I was listening to an audio piece about Alex Mandossian. At one point, he was living on the streets in McArthur Park in LA. He learned a lesson from a woman who was feeding the birds there, and an interview with that lady would have been wonderful. Now, who was she? Nobody. But she had an interesting story to tell, and that story is sellable.