In summary, when it comes to affiliate marketing, you can earn a lot of money without creating your own product.
Getting Affiliates to promote your products can be easy money than you could make on your own because they attract buyers. Those buyers can become repeated buyers. It is easier to sell to someone who has purchased before. Your income from affilites is free money minus the work you put in to attract and work with the affiliates.
To get affiliates, you will need to convince them that you and your products are worth promoting. You will need to build the know, like, and trust factor. You will also need to have patience. Potential affiliates often won't say yes the first time you ask, or they will say yes, but then get distracted and they will go and promote something else unless you follow up with them.
I didn't know what was affiliate marketing until I got this book. The great thing about affiliate marketing is that you promote other people products and you earn a commission. I recommend you get this book if you want to earn some serious money.