Why We're Splitting Our Sponsorship Strategy in Two (And Betting on Larger Newsletters)

I spent two years telling you size doesn't matter. It still doesn't. But the collapse of SEO and the rising cost of paid media just handed large newsletters a tailwind we can't ignore.

First, I owe you an apology. I haven't written in two months. I'd like to blame my three-week Africa trip, but I've been back for a month. I could blame my kids for coming home from college and making me want to spend time with them, but if I'm being honest, it just felt like I didn't have much to say.

Until now.

For most of the last two years, the case for newsletter sponsorships has been a small-and-mighty story. Engaged niche audiences with premium content that punch well above their list size. I've made that case in this newsletter more than once, and I still believe every word of it.

So it might sound like a reversal to say we're now deliberately building relationships with much larger newsletters. It isn't. It's a barbell.

We're shifting to a bifurcated sponsorship strategy: leaning into the small, high-engagement end of the market and the large end at the same time, and intentionally underweighting the undifferentiated middle. The two ends win for different reasons. The middle gets squeezed from both sides. Here's the thinking, and the two macro forces driving it.

Force one: SEO is collapsing as a distribution channel

The open web's traffic engine is breaking, fast. AI Overviews now appear on more than a quarter of Google searches, roughly double a year ago. And when AI overviews show up, organic click-through to the pages below it falls off a cliff. Seer Interactive measured organic CTR dropping from around 1.8% to 0.6% when an AI Overview is present, a ~61% decline. Roughly 60% of searches now end with no click to any site at all.

For publishers, this isn't abstract. The Reuters Institute found Google referral traffic to thousands of publisher sites fell about 38% in the U.S. over a single year. The search box used to be where publishers went to rent an audience. Their Blockbuster rental is overdue.

What does a publisher do when discovery dries up? They stop renting and start owning. The newsletter stops being a side channel and becomes the core asset; the one piece of distribution Google and the LLMs can't take away. That has two consequences for our market: more serious publishers are building serious newsletters, and the quality of inventory at the top end is rising. The large, premium newsletter is becoming the place publishers invest first, not last.

Force two: Paid channels like SEM and Meta are getting more expensive and less efficient at the same time

The two channels that have absorbed performance budgets for 15 years are both squeezing advertisers right now.

On Meta, CPMs jumped roughly 20% year over year, and Meta itself reported ad costs climbing 14% against only a 6% increase in impressions. Brands are paying more to reach the same people. Facebook cost-per-lead is up over 20%. On Google, average CPCs have risen across the large majority of industries; the same AI Overviews eating organic clicks are pressuring paid search CPCs too.

Auction density, AI-driven bidding, and ongoing signal loss are all pushing the same direction: the marginal dollar on SEM and Meta buys less than it did a year ago. When your incumbent channels get more expensive and less effective in the same quarter, budget starts looking for the next efficient place to go. Newsletters, opt-in, attention-rich, contextually relevant, and trusted, are one of the few places that intent and attention still live.

Why the large end benefits most

Here's the part that drives the bifurcation. When budget migrates out of paid search and paid social, it doesn't migrate evenly.

A performance team with a seven-figure SEM and Meta budget that's losing efficiency cannot rebuild that budget across 200 tiny newsletters, one insertion order at a time. The operational overhead alone would eat the savings. They need places they can deploy real budget with reach, brand safety, and measurement they can stand behind. That means large premium newsletters and curated portfolios of smaller ones that scale.

So as the money moves, it concentrates at the top. Large newsletters are positioned to absorb spend that small newsletters, individually, simply can't. That's why we're building toward them now, ahead of the migration rather than after it.

This isn't "bigger is better", it's a barbell

I want to be precise here, because it would be easy to read this as me walking back the small-newsletter case. I'm not.

The small, high-engagement, well-designed newsletter still wins on efficiency and on performance. That hasn't changed, and it's still where a lot of the best ROI in this market lives. What's changed is that the large end now has a powerful macro tailwind it didn't have before, and it solves a problem the small end can't solve alone: absorbing large budgets.

Even at the top end, this is still a quality-of-environment game, not a raw-list-size game. A big list with a generic, skimmable experience is still a weak buy. The barbell rewards the premium large newsletter and the engaged small one. What it punishes is the mushy middle, undifferentiated, no clear niche, no standout reading experience. Squeezed by the efficiency of the small end and the scale of the large end, with no real advantage on either.

And to be clear about how we'll judge larger newsletters: the same way we judge everything; on unique clicks, net of duplicates and bots, and what happens after the click, on the advertiser's website. Scale doesn't earn a pass on measurement.

What this means for you

If you're a large, premium newsletter: the wind is at your back. The forces pushing publishers off SEO and advertisers off other paid channels both point toward you. Lean in and protect the reading experience (no programmatic banner ads) that makes readers continue to engage and advertisers coming back.

If you're a small, niche newsletter: keep doing what works. Engagement, relevance, and design are your edge, and the efficiency case for you is as strong as ever. Don't try to be big; be unmissable.

If you're an advertiser: don't wait for your SEM and Meta programs to become fully insolvent before you build a newsletter muscle. Build it now with efficient niche placements on one end, scaled premium newsletters on the other so you have somewhere to move budget the moment your paid channels stop pulling their weight.

Our Take

We didn't choose a bifurcated strategy to hedge. We chose it because the market is physically pulling apart, and the smart position is to own both ends of the split rather than defend the middle. SEO collapse is forcing publishers onto owned channels and lifting the value of large newsletters. Rising SEM and Meta costs are pushing advertiser budget toward attention it can still buy efficiently. Those two forces meet at the top of the newsletter market, so that's where we're building, without giving up the small-and-mighty end that got us here.

If you operate a large premium newsletter and want to talk about scaled, performance-measured sponsorships — or you're a marketer trying to build the barbell on the buy side — reach out at cswerdloff@wellput.io.