Note: these articles will form the core of a new ebook by this title. Disclaimer: I do not work for, represent, or am associated with anyone who works or represents the sites or products I've listed below. I'm not getting any fees for listing them here. Any company names, trademarks, etc, are the property of the respective company.
What you should have now are the following items, if you've done all the steps in this book: the original book document file, a print version document file, a PDF version document file, a PDF ebook, an EPUB ebook, a MOBI ebook, and your book on sale at Smashwords, Barnes and Noble, and Amazon. Smashwords, once the book has passed the Professional Status and been assigned an ISBN, will distribute the book to other important retailers, most notably Apple and Kobo. You should also have a good 600 by around 1000 pixel-sized front cover graphic you can use for many promotional purposes.
So now that you have these various ebook versions of your book, what do you do with them? The obvious answer is to sell them. But there are other options. Let's look at a few here.