1. Allow other e-zine publishers or web site owners to republish small nuggets or excerpts of information from your ebook with your byline or ad included.
2. Make extra profits from selling monthly updates of your ebook. You could also back end sell the extra never released chapters of your e-book.
3. Give away a free ebook and then give people an option of buying the paid version of the ebook. Also let others give away the free version of your ebook.
4. Divide your ebook content into reports then give people the option of just purchasing the info they want.
5. Purchase reprint rights to other people's ebooks an combine them with your books in a large package deal or private ebook library web site.
6. Change the benefits on your ebook ad copy into links. When people click on it take them right to the order page. It'll give them an urge to buy your ebook.
7. Charge people a cheap price to read half of your ebook. If they like it, they can pay full price to read the other half.
Use some of these creative ways with ebooks and you will make more money. Your next step is to sell as many of these books as possible by marketing them correctly.
There are many more you can use but this is a start.
Please add any other ways you can think of to the list.