If you’re looking to monetize your writing, affiliate marketing is an ideal option. It can turn a small side hustle into a profitable business idea. It also requires minimal startup costs.

Several top affiliate marketing courses are available online to help you get started, from free options to paid courses that will provide you with all the training you need to make it big. These courses cover a variety of topics, including choosing your niche and promoting products.

Learn how to build high-quality affiliate websites with Udemy — a course completed by more than 11,000 students, with an average rating of 4.5. The lessons are well-paced and offer actionable tips for establishing an affiliate site.

The Affiliate Lab by Matt Diggity — another popular course on Udemy, this one is taught by an electrical engineer who relies on testing to find the best strategies for SEO. The result is a comprehensive and easy-to-follow course that will teach you how to turn a site into a strong affiliate program before selling it for years of profit.

Kajabi – a platform for creating and managing digital products that lets you track affiliate sales with a built-in system of share links to any URL, landing page or checkout page. This tool makes it easy for your affiliates to promote your product and collect a commission on every sale.

Copyblogger — an authority in blogging, and a Kajabi partner, has sold several original products and is an affiliate for a variety of marketing tools, including social media management tools. Their strategy is to sell their own products, and to use their expertise to promote other companies’ offerings as an affiliate.