SaaS affiliate marketing revolves around promoting Software as a Service (SaaS) products to your audience through various online channels. As an affiliate, you share unique referral links for SaaS tools on your website, blog, or social media platforms. When someone clicks on your link and subscribes to the service, you earn a commission. This commission could be a one-time payment or recurring, depending on the subscription model of the SaaS product. The goal is to drive traffic and encourage sign-ups, while earning passive income as long as users remain subscribed.