As a participant in affiliate marketing, you are in charge of bringing more awareness to a brand by directly engaging customers with the product.
How does it help a business?
This helps a business because you can diversify your outreach to a vast majority of people by targeting different affiliates. If you have a site or company that can promote to a large quantity of people, it helps the consumer be cost efficient and the company can easily track metrics such as click-through and conversion rates.
Why do you like this discipline?
I find this discipline fascinating because as a company working with affiliates, you get to put a creative twist on how you want to represent and promote a company. Also, YouTubers have the opportunity to make their brand more repitable by using this tactic. Being something bigger than yourself and seeing direct results from your hard work is always a rewarding experience.
Technology is rising every moment of each day. Mobile devices have been increasingly improving on ways to convert consumers into customers. Googles new mobile-friendly algorithms might affect affiliate marketing. Instead of rewarding the affiliate company directly, Google rewards the websites that are optimized for mobile devices. I don't think that this will drastically affect affiliate marketing, however, I do believe that innovative ideas need to be developed to combat Google's new algorithm.