Display ads pay for every visitor; affiliate links pay for convictions. A reader who clicks your recommendation and buys is worth many times an ad impression — which is why affiliate income is the natural second revenue stream for a blog with even modest, trusting traffic. It's also the easiest monetization to do badly. One lazy recommendation can cost more credibility than it earns commissions.
This guide walks the honest version: how the mechanics work, choosing products you can defend, disclosure that satisfies both regulators and readers, and the setup details most beginners get wrong.
The mechanics in one paragraph#
You join a program (a company's own, or a network like Amazon's), receive tracked links to products, and place them inside genuinely relevant content. When a reader clicks and buys within the program's cookie window — 24 hours on some, 30–90 days on others — you earn a percentage. Payout thresholds and terms vary; read them before celebrating the commission rate, because restrictions (where links may appear, prohibited words, payout minimums) matter more than percentages in practice.
Choosing products: the only filter that matters#
The question isn't "what pays well?" but "what would I recommend with no link attached?" That filter does three jobs at once:
- It protects trust, which is the actual asset every future conversion draws on.
- It protects rankings. Search engines evaluate commercial content more harshly than editorial; thin "best X" pages assembled from commission tables don't survive review.
- It survives time. Products you truly use generate ongoing stories, updates, and honest comparisons — content that maintains itself.
Practically: recommend what appears in your screenshots, your workflow posts, your tool lists. If nothing you use has a program yet, that's next month's research — not a reason to recommend strangers' products today.
Disclosure: non-negotiable, and easier than it sounds#
Virtually every jurisdiction with consumer-protection law requires clear disclosure of paid relationships — in the US, the FTC requires it before the link, visibly, without burying it in a footnote. Beyond legality, disclosure measurably helps: informed readers click anyway when the recommendation is good, and undisclosed-then-discovered links read as betrayal.
Working rules:
- Disclose at the top of any post containing affiliate links, in plain language: "Some links below are affiliate links; if you buy through them we earn a commission at no extra cost to you."
- Disclose again near clusters of links in long posts — a reader landing mid-scroll via search never saw your intro.
- Never let disclosure contradict platform rules: some programs dictate exact wording; use theirs where required.
- Link rel hygiene matters technically too — affiliate links should carry
rel="sponsored nofollow"so search engines understand the commercial relationship. If your platform automates this, verify it occasionally by viewing the page source.
Where affiliate links belong (and where they don't)#
Placement determines both conversions and credibility:
- Natural fits: tool roundups, "what I use" posts, tutorials where the product is genuinely part of the walkthrough, comparison pieces weighing real alternatives.
- Awkward fits that still work: resource sections at the end of related articles, disclosed as such.
- Never: links interrupting a cautionary or critical piece ("this software ruined my project — buy it here"), popups before content, or recommendations inserted into unrelated topics because the program pays well this month.
A useful test per placement: would you include this link if the post were being printed in a respected magazine that banned commissions? Yes → ship it. Hesitation → move it.
Measuring without obsessing#
Affiliate reporting is hypnotic; check it weekly, not hourly. Track clicks per link position and conversion rate per article — those two numbers tell you whether the problem is placement (clicks low) or product-page trust (clicks fine, purchases rare). Feed the findings into your regular analytics review rather than building a second obsession alongside it.
The compounding part#
Done honestly, affiliate income behaves like refreshed evergreen content: small early numbers, then long-term stability, because each trusted recommendation strengthens the next one's reception. Readers who bought once on your word come back to see what else you found. That loop — not any individual commission — is the asset. Guard it accordingly.
Related: what AdSense actually pays puts display ads beside affiliate income, and getting AdSense approved covers the compliance groundwork both models sit on.
