Digital marketing is also referred to as 'online marketing', 'internet marketing' or 'web marketing'. The term digital marketing has grown in popularity over time. In the USA online marketing is still a popular term. In Italy, digital marketing is referred to as web marketing. Worldwide digital marketing has become the most common term, especially after the year 2013.
Check out what competitors are offering and how they structure their affiliate programs because that'll be a good place to start. It's also what your affiliates are going to be comparing you to when deciding whether to endorse you or someone else. Remember, your affiliates have many options of products/services to represent so they're going to want to choose products that convert well and offer a decent payout.
Affiliate marketing is commonly confused with referral marketing, as both forms of marketing use third parties to drive sales to the retailer. The two forms of marketing are differentiated, however, in how they drive sales, where affiliate marketing relies purely on financial motivations, while referral marketing relies more on trust and personal relationships.