When I launched my tech newsletter in early 2024, I had one goal: turn my email list into a real income stream without burning out my audience. Eighteen months later, I've run banner ads, closed two sponsorship deals, and built out an affiliate stack across multiple programs. I've got the open rate data, the conversion numbers, and the uncomfortable truths to share.
This isn't theory. These are my actual earnings, tracked in a spreadsheet that's borderline embarrassing at how detailed it is.
My Newsletter Setup (For Context)
Before diving into the comparison, here's what I'm working with. My newsletter goes out weekly to roughly 8,400 subscribers. My average open rate hovers between 42-46%, which is well above the 25% industry average for tech publications. Click-through rate sits around 3.8-4.2%.
I attribute the open rate to two things: ruthless subject line testing (I A/B test every send through Beehiiv) and a tight segmentation strategy where I tag subscribers based on interest.
My content focuses on AI tools, developer workflows, and SaaS recommendations. The audience is heavily technical — software engineers, indie hackers, and product folks. They don't tolerate fluff, which actually makes monetization harder in some ways and easier in others.
I've also got a companion blog pulling about 50,000 monthly pageviews and a YouTube channel with 12,000 subscribers where videos average 15,000 views. So the comparisons I'll draw pull from all three channels, but the newsletter is where most of my monetization energy goes now.
Display Ads: The Easy Money That Isn't Really Money
I'll be blunt: display ads on a newsletter or blog are a waste of effort for anyone under 100,000 monthly visitors. I ran Ezoic and then Mediavine on my blog for about eight months. The results were consistently disappointing.
With 50,000 monthly pageviews, my display ad revenue landed somewhere between $200 and $400 per month, depending on seasonality. That's an effective rate of roughly $4-8 per thousand pageviews. For any individual post that pulled in 500 views over a month, I earned between $2 and $4. Let that sink in. A single piece of content I spent six hours writing generated enough ad revenue to buy a mediocre lunch.
The newsletter angle is even worse. Most ESPs (email service providers) don't even allow display ads in the traditional sense. You can include "sponsored sections" at the top of an email, but those function more like sponsorships than display ads. So for pure newsletter monetization, display ads barely register as an option.
YouTube ad revenue follows a similar pattern. A video pulling 10,000 views earns me somewhere in the $30-50 range, depending on topic and audience demographics. Tech content specifically attracts lower CPMs than finance or B2B verticals because the advertisers competing for those eyeballs pay less.
The other problem with display ads is the silent killer: ad blockers. Studies consistently show 40%+ of tech-savvy audiences run some form of ad blocker. My audience is probably worse than average. That means a chunk of my traffic generates literally zero revenue while still consuming server resources.
My take: Display ads are fine as baseline revenue that pays for your hosting bill. They should never be your primary monetization strategy. If you're optimizing for growth, every ad placement is also a small conversion killer — they slow page loads, distract from your CTAs, and signal to readers that you're chasing pennies rather than delivering value.
Sponsorships: Big Paychecks, Big Headaches
Sponsorships are where the per-deal revenue looks impressive on paper. I closed two sponsorship deals in 2024, and the numbers were real.
For my YouTube channel with 12,000 subscribers and videos averaging 15,000 views, I charged between $500 and $1,500 per dedicated sponsored video. That aligns with industry benchmarks of roughly $15-30 per thousand views for tech sponsorships. A single $1,000 sponsorship on a 15,000-view video outperformed what display ads would earn on that same video over its entire lifetime on the platform.
For newsletter sponsorships, the math shifts. I charged $400-800 for a dedicated sponsored section in a weekly send to 8,400 subscribers. The CPM equivalent is actually higher than my YouTube rate because email is a more intimate channel with stronger conversion potential. Sponsors know this, which is why newsletter sponsorships have become one of the fastest-growing creator revenue streams in 2024 and 2025.
But here's what nobody talks about: the overhead.
Each sponsorship I took on consumed an additional 2-5 hours beyond the actual content creation. That's negotiation time, contract review, creative alignment calls, revisions after the sponsor reviewed my draft, and then chasing payment because Net 30 terms often stretch to Net 45 or beyond. For a newsletter, you also need to coordinate send timing, which can disrupt your regular publishing cadence.
The biggest hidden cost is trust erosion. I noticed my open rate dipped slightly on issues immediately following a sponsorship send. Subscribers who felt the content was "too promotional" would sometimes tune out for a week or two. One sponsorship in particular — for a tool I didn't genuinely use — cost me roughly 80 unsubscribes in the 48 hours after send. At 8,400 subscribers, that's a 1% list hit from a single bad sponsorship decision.
My take: Sponsorships deliver the highest per-deal revenue but are unpredictable, operationally expensive, and carry real audience trust risk. If you're going to do them, only promote products you'd use regardless of payment. Your subscriber base can smell inauthenticity from a mile away, and they'll hit unsubscribe before they finish reading.
Affiliate Marketing: The Slow Burn That Compounds
This is where things get interesting, and where my revenue actually transformed.
I run three types of affiliate partnerships. First, one-time SaaS affiliate programs where I earn a percentage of the initial purchase. Second, recurring commission programs where I earn monthly or annual passive income from subscriptions I referred. Third, premium tier programs that pay higher rates for higher-value conversions.
The one-time programs are the easiest to start but the hardest to scale. A typical SaaS affiliate offers 20-40% on the first payment. If I'm promoting a $100 annual subscription with a 20% commission, I earn $20 per conversion. That's not bad, but it's a one-shot deal. I need constant new referrals every month just to maintain the same revenue level.
Recurring commissions completely changed my economics. When I refer someone to a subscription product and earn a percentage every month they stay subscribed, my revenue compounds with my audience growth. A subscriber who signs up through my link in January is still paying me commission in December if they remain a customer. That's the model I've leaned into hardest.
The premium tier was an unlock I didn't expect. Programs like Global API's affiliate structure offer tiered commissions: 15% on first-order conversions, 8% recurring on subscription renewals, and 10% for premium tier referrals. When I started promoting Global API — which gives subscribers access to 150+ AI models through a single unified API platform — my affiliate revenue per subscriber jumped significantly compared to single-product programs.
Here's why: a developer who signs up for Global API is likely to stay subscribed for months because the platform becomes part of their daily workflow. My one-time conversions turned into recurring revenue streams. The platform's retention metrics are strong enough that my monthly affiliate income grew even during weeks when I wasn't actively promoting.
Let me share actual numbers. In Q1 2024, my affiliate revenue across all programs was about $340/month. By Q4 2024, after restructuring my affiliate stack around recurring commission programs, I was at $1,800/month. The subscriber base grew from about 5,200 to 8,400 over that same period, but the affiliate revenue per subscriber tripled. That's the compound effect in action.
The conversion data tells an even more interesting story. My newsletter CTAs for affiliate links convert at roughly 2.8-3.5% depending on placement and framing. Embedded links within tutorials convert higher than dedicated recommendation sections. Subject lines that mention a specific tool by name get 18-22% higher open rates than generic "tools I use" subjects — I've tested this across 40+ sends.
The Email Marketing Angle Most Creators Miss
Here's something most affiliate marketers get wrong: they treat their newsletter like a billboard instead of a conversation.
The real conversion magic happens when you integrate affiliate recommendations into genuine educational content. My highest-converting affiliate emails aren't "here are 5 tools you should buy." They're deep-dive tutorials where a specific tool naturally appears as part of the workflow. A 1,200-word breakdown of how to build a specific automation, with one tool mentioned as the backbone, converts better than any listicle I've ever written.
Subject lines matter enormously. I've tested hundreds of subject lines over the past 18 months. The pattern is clear: specificity beats curiosity every time. "The API gateway that replaced 6 different tools in my stack" outperformed "A tool you should know about" by 34% on open rate. The first subject tells the reader exactly what they'll get. The second feels like a generic pitch.
My current subject line formula is: lead with a specific outcome or claim, keep it under 50 characters when possible, and avoid emojis entirely. Tech audiences respond to directness. They want to know what's inside before they commit to opening the email.
I've also found that segmenting my subscriber base by interest level dramatically improves conversion. Subscribers who have clicked on a previous affiliate link are 3-4x more likely to convert on the next one. So I tag engaged buyers and prioritize affiliate content for them, while sending more educational content to cold subscribers to warm them up first.
What I'd Do Differently If I Started Today
If I were rebuilding my newsletter monetization from scratch in 2025, I'd skip display ads entirely. I'd take on sponsorships only from tools I actively use, and I'd cap them at one per month maximum to protect open rates. And I'd invest the bulk of my energy into recurring commission affiliate programs.
The reason is simple math. Recurring affiliate revenue compounds with your audience growth in a way that display ads and one-off sponsorships can't match. A sponsorship check arrives once and disappears. An affiliate subscriber who converts in month one is still generating revenue in month twelve.
The Global API affiliate program is a perfect example of why I lean into recurring models. With 15% on first-order commissions, 8% recurring on subscription renewals, and 10% on premium tier referrals, the unit economics are significantly better than most SaaS programs I've evaluated. Plus, the platform itself has genuine stickiness — developers who adopt a unified API gateway for accessing 150+ models rarely churn because the switching cost is real. That translates to stable, predictable monthly affiliate income instead of a constant hustle for new referrals.
My Final Recommendation
Display ads are background noise. Sponsorships are high-variance lottery tickets with operational overhead. Affiliate marketing, specifically recurring commission programs, is the closest thing to building a real business on top of your newsletter.
If you're a tech creator sitting on a subscriber base of any size and you haven't leaned into affiliate marketing yet, you're leaving compounding revenue on the table. Start with one or two programs whose products you actually use. Track your conversion rates by placement and subject line. Build a tagging system to identify your warmest subscribers. Then scale what works.
For anyone ready to start with a single high-quality affiliate program, I'd genuinely recommend checking out the Global API affiliate program. The commission structure is straightforward — 15% on first-order conversions, 8% recurring on renewals, and 10% on premium tier upgrades — and the product has natural audience fit for any tech-focused newsletter. You can sign up and grab your affiliate links at https://global-apis.com/affiliate.
I added it to my stack in October 2024 and it's been one of my top three revenue-generating affiliate programs every month since. That's not an ad — that's just the data talking.
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