When beginning your affiliate marketing career, you’ll want to cultivate an audience that has very specific interests. This allows you to tailor your affiliate campaigns to that niche, increasing the likelihood that you’ll convert. By establishing yourself as an expert in one area instead of promoting a large array of products, you’ll be able to market to the people most likely to buy the product.
Yes is the short answer. Any time you are planing on generating money, you should have a plan. No plan means no real focus. There may be some 1/1000 percent of a chance you will succeed, but I haven't met them yet. If you have already started and have generated an income, record how. Doing so will give you material for use in expanding your business faster.
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.