Of course, the number one thing you want to look at is the commission rate. What percentage of the customer’s payment will you receive? In some cases, there is a flat fee for every sale made, and sometimes you will get a percentage of the total sale. Keep your eye out for "percentage of commission" sales, as this means that you're not taking a percentage of the total sale, but rather a percentage of the company's commission.
Since July 2014 I read for the first time about affiliate marketing, I never heard of this way of working before. Until then, I have worked in MLM (multi-level-marketing). Which wasn't that suitable for me. MLM is a very aggressive way of marketing, and you do need to harass everyone around you to join. That's not quite me. Affiliate marketing works very different. You write reviews about products of a company, and when people decide to buy something after reading your review, you get a few percentage of the sale. That's more my line of work.
One of the most effective ways of making money from affiliate programs is to link to the promoted products or services from your own website or email list. This allows you to build, analyze, and target your audience effectively. It's quick and easy to start a website if you don't already have your own, and it's possible to begin earning affiliate income within a matter of hours once the website is up and running. (See also: How to Turn Your Instagram Account Into a Paying Gig)
If you’re looking for inspiration, my friend Michelle Schroeder-Gardner of the website Making Sense of Sense has become the expert on all things affiliate marketing. Michelle earns more than $100,000 per month from her blog and the bulk of her income comes from affiliate sales. Michelle has had so much success with affiliate marketing that she even has her own course called Making Sense of Affiliate Marketing.