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 extra never released chapters of your e-book.
3. Give away a free ebook and then give people an option of buying paid version of ebook. Also let others give away free version of your ebook.
4. Divide your ebook content into reports then give people option of just purchasing info they want.
5. Purchase reprint rights to other people's ebooks an combine them with your in a large package deal or private ebook library web site.
6. Change benefits on your ebook ad copy into links. When people click on it take them right to order page. It'll give them a 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 other half.
8. Offer freebies that are related to ebook your selling. It could be free monthly ebook updates, free e-zine, free consulting, etc.