Affiliate networks administer programs for individual merchants, handling all the work involved, while generally providing tracking and reporting capabilities to their affiliates to help them keep tabs on their revenues and determine which products or services are producing the best returns. These tools can be helpful to an affiliate in fine-tuning the line of products she decides to promote on her site and, ideally, increasing revenues as a result.
Upselling is a sales technique where the salesperson encourages a more expensive purchase by a customer by persuading them to get an upgraded version of an item or to purchase add-ons. Remember our food processor example? That food processor could probably be best used with a book of recipes, which also can be purchased at the same company’s website.
Next, you’ll want to pick a WordPress theme from somewhere like ThemeForest, Elegant Themes or OptimizePress. This is the barebones design of your site, which you can then customize with your own branding, copy, and images. That being said, you don’t want to cheap out. It costs less than $100 to buy a theme that will make your website look professional (and you can upgrade to a completely custom design once you get the business going).