Amazon has over 300 million active customers every day, and it is the largest online retailer in the United States. Perhaps you’re interested in making money off this internet behemoth? Here’s how to make money on Amazon without selling anything.

You can earn sales commission whenever you refer a customer to buy something from Amazon’s online marketplace by joining Amazon’s Associate Program. It is free to sign up as an Amazon Associate, but in order to generate any substantial amount of commission, you’ll need to build an Amazon affiliate site to bring in traffic and convert them in to sales. Don’t worry, It’ll only take a day to make the site. The key is to keep it low cost and low effort

1. Pick Your Niche.

Pick a topic that you’re passionate about. Then, choose a niche within that topic to make your site distinctive. Make sure you’re interested in your niche! You’re going to be writing product recommendations and reviews on your niche, the last thing you want to do is waste time writing about something you have no interest in. For ideas on topics and niches, here is a list of product categories on Amazon to make money without selling anything.

2. Build a Quick Blog

It’s easier than ever to create a blog. You can easily create a site within 3 hours through WordPress, Wix or Weebly. Once you’ve decided on a theme for your blog, try to stick with it. Don’t waste too much time playing around with colour palettes, instead concentrate on creating as much quality content as much as possible. By doing this, you’re on your way to making money on Amazon without selling anything.

3. Do Product Reviews

Take some time to research on to find products in your niche to review.  Another great way to make money on Amazon is to write high quality product review. An Amazon product review is by far the best way to get higher click-through rates and increased sales.

With every product review article you write, your aim is to convince the reader to investigate ways to purchase the product by the end of the review. Always include links to all the products you mention both within the text of the article and at the end of the article. This creates a smooth transition from learning about the product to purchasing the product at the end.

Related: 18 Ways to Make Money This Weekend

4. Build An Email List

The importance of building an email list cannot be stressed enough. Building a large email list will not be easy, but keep working on it. You’ll get there quicker than you think. An effective method to gather emails is to offer a freebie of some sort (for example, a buyer’s guide) for signing onto your email list.

Once you have an email list, use Mailchimp or Aweber to schedule regular email campaigns to promote your product reviews. On average, around 10% of your Amazon Associate income can be attributed to the effectiveness of your email marketing campaigns.

During holiday season, focus on creating more product reviews and increase the consistency of emails campaigns. People are in the buying mood and you’ll be able to achieve higher conversions and make money on Amazon without selling anything.