ZDNETAffiliate links have become hugely popular among internet content creators. In many ways, they’ve replaced or strongly augmented advertising and sponsorships as a way to support publications and productions.I recently added affiliate links to my newsletter and YouTube channel but made an undocumented mistake that cost me the holiday boost I was hoping for. In this article, I’ll show you what that mistake was and how to avoid it. But first, let’s quickly define what affiliate links are and how they work. Understanding affiliate links You may have seen a small disclosure statement at the top or bottom of many of our articles saying, “When you buy through our links, we may earn a commission.” Those links are affiliate links. Most successful content-oriented websites these days are at least partially supported through those commissions.Also: The 25 most popular products ZDNET readers bought during the holidaysThey’re actually a creative and fairly ethical way for sellers and creators to support each other.An affiliate link is a link to a product that contains a special code identifying the affiliate (the site where the link is displayed). When a reader clicks on one of those links and makes a purchase, a small commission is credited to the sending site.Clicking an affiliate link doesn’t change the price you pay for a product, so visiting a site through an affiliate link doesn’t cost consumers extra. The seller (in my case, Amazon) shares a small amount of the overall sale price if a sale occurs. It has the potential to be fairly profitable for content creators because Amazon will send a payment for almost any purchase within 24 hours by that reader, not just purchases of the item linked to.There are, of course, terms and conditions and products that have higher or lower commissions or none at all. But the general approach is fairly sound.Also: Three CES 2025 products I’d buy as soon as they’re available for purchaseYes, content creators make some money if someone buys a product that’s been linked to, but creators need to support all the time and cost of infrastructure. Affiliate links are certainly less in-your-face than ads, which we as an industry have relied on for about a hundred years. My decision to add affiliate links For years, I’ve avoided putting affiliate links into my personal content. But my newsletter and YouTube channel grew quite nicely in 2024, and I’ve been spending fairly heavily building out infrastructure to produce high-quality videos. I have an entire army of video robots that do some of what a camera person would do, and those robots are not cheap.People subscribe to my newsletter to see what articles I’ve written here on ZDNET, to see some of my projects while they’re in progress, to get tool recommendations, to watch some very cool YouTube videos, and to read interesting articles I spotlight — usually including one or more ZDNET articles by my colleagues.Also: Why the TikTok ban could collapse the creator economyMy videos are generally build videos of some of my outlandish projects. That’s why they often spotlight tools I use or gear I’ve invested in.The videos point viewers to my newsletter and the newsletter points readers to my content here on ZDNET, so it all becomes a virtuous cycle that provides my “fans” and me with a more comprehensive way to connect on a variety of levels.But, like I said, it seemed time to help cover the costs for some of the gear that goes into producing the content I do, so I decided to add Amazon affiliate links to my holiday recommendation newsletter and then continue into 2025.That’s where things went wrong. Amazon has strict rules As you might imagine with any program that involves vendors making payouts, there are strict rules designed to protect the vendors’ interests and prevent payout fraud. Amazon has many rules for its Amazon Associates program More