E-Books are a fast-growing industry for people with valuable information to impart. Getting them noticed, however, takes time and marketing.
E-Books are an enormous business because people continually seek fast information to solve their problems. There are so many e-Books; however, that one e-Book writer trying to get attention for their e-Book can be difficult. The marketing needed to make money on e-Book sales takes time and resources that most people simply don't have. The solution to this problem is using affiliates to sell the e-Book.
Selling Through Click Bank.

Click Bank is that largest and best known of the digital product sites. It brings people selling e-Books and affiliate marketers together. There are more than 100,000 members of Click bank who sign up to sell other people's e-Books. To get some of those affiliates to sell one, the deal has to be made attractive to them. This means offering a high commission rate and providing a sales page that will be effective in getting customers to buy.

To sell an e-Book through Click bank, create a merchant account. Then, the e-Book owner has to set up a minister that advertises the book. The minister is generally a one-page site that explains the contents of the book and provides a link to purchase it. The actual sale is handled through Click Bank, which takes a commission and sends a check to the e-Book owner. If an affiliate was the one that brought the customer to the product, they also get a cut of the selling price.

Pay Dot com Affiliate Sales
Pay Dot com is a site similar to Click Bank. They don't have the same number of affiliates available as Click Bank does, but they do have a few advantages. They pay faster and pay through PayPal instead of a check like Click Bank. They also have a lower membership fee and don't have a maximum price rule for the items sold through the site.
Selling through commission Junction.

Selling an e-Book on Commission junction works in a similar way to the other sites. Affiliates sign up with the site and look for products to sell for a commission. Selling an e-Book there works like selling any of the other products that people sell through the site. Vendors provide marketing materials for their products, including banner ads and different types of product links. The affiliates then use those materials in their own affiliate marketing campaigns.

Before selling e-Books, research should be done on the e-Book market. Affiliate marketing will not help e-Books that have nothing new to offer. If the subject has already been covered, find a new angle that hasn't. If an e-Book supplies valuable information and gains a reputation among buyers and affiliates, there's no limit to the income that can be made from selling the book.