Choosing a tightly focused niche will also help your ranking in Google and allow you to grow your following faster.
Amazon products, in particular, are an easy way to get started. Many newbies begin by becoming an Amazon affiliate and then scaling to other types of more profitable affiliate offers.

When your sales start coming in from that many sources and begin to grow, that’s when you can really blow up your business with paid advertising by just driving traffic to the sales mechanisms that already work. Affiliate marketing is the process of earning income every time you promote someone elses products or services. If you generate a sale for the company, you get paid. If you don’t generate a sale, you do not get paid. Affiliate income is not consistent. You’ll look at income on an annual basis instead of monthly. A decent affiliate can make anywhere from $10,000 a year to $400,000. A super affiliate can make upwards of $1,500,000 a year. Clickbank, Shareasale, JVzoo, Hotmart, Clickbooth, Ads 4 Dough, Commission Junction, Amazon Affiliate Program, and eBay Partners Program. No, it is not. Think of it as a commission-only sales job. You only get paid every time you drive a sale to a business. Coming up with a valid product idea.Validating that idea by getting people to pre-pay you for the product.Creating that product.Finding affiliates, likely through an affiliate network, to partner with who will promote your product.
For every successful referral sale, you get a 30% commission that are paid directly into your PayPal account every month.