If you have built up an email list, you could also promote your affiliate offers via email promotions. Just make sure you build up a relationship with your audience first instead of going for the hard sell straightaway. The emails you send out must contain your affiliate links to products so when your audience click through. the sale is attributed to you.
When promoting affiliate offers, just make sure you are fully aware of all the terms and conditions attached to your affiliate program. Some programs can be strict about how they allow you to promote their products. For example, some may limit you to banner ads and links only, while others will allow you to use paid advertising, but won't allow email marketing.
Several years ago, I attended a concert by singer-songwriter Julie Gold. She’s best known for her song “From a Distance,” which was recorded by Bette Midler in 1990, hit the top of the charts, and won a Grammy Award. When Gold performed that piece, she described it as “the song that gave me my freedom,” because the royalties from Midler’s recording had enabled her to give up her day job for good and become a full-time musician. This story shows that it’s possible for an artist who gets one really big break – such as a hit song, a successful movie, or a bestselling book – to live off the proceeds of that one success for life.