Your ebook can be repurposed into many products that can be sold on their own or in combination with your ebook. For example, you can make a recording of an interview with someone who is an expert in an area related to your ebook topic. You can then include the CD or mp3 of this recording to increase the value of your ebook.
You can also write a workbook to go along with your ebook content. Workbooks are extremely popular and are easy to create as you are writing. Another product you can create is a special report based on your topic. These are all products that can be downloaded digitally, saving you the time and effort of shipping any physical products. Brainstorm other ideas for creating products that can be used to include as bonuses when you sell your ebook.