Publishers are looking for new ways to grow revenue as search referrals decline and more advertising investment moves towards major platforms. Personalised products may help strengthen audience relationships, while recent market figures suggest that sell-side ad tech is regaining momentum.
Together, these developments raise a common question: where can publishers create more value and retain greater control? Here are three AdTech signals worth watching this week.
Publishers test whether personalisation can drive subscriptions
Publishers are experimenting with personalised newsletters and website experiences as they search for stronger ways to engage registered users and convert them into paying subscribers.
Early results are encouraging, but mixed. One publisher testing automated local briefings reported a 20% increase in Click-Through Rate when personalised content appeared near the top. Another automated a previously hand-curated newsletter without changing its open or click rates, but significantly reduced the workload required to produce it.
These examples show that Personalisation can create value in different ways. It may improve engagement, but it can also make content production more efficient. A test that maintains performance while reducing manual work can still be a meaningful operational success.
However, personalisation does not automatically lead to Paid Subscriptions. Publishers still need to determine which content should be personalised, when readers should encounter a paywall and what combination of relevance and editorial judgement encourages conversion.
There is also a risk that overly personalised experiences remove the shared editorial perspective audiences value. Some readers want content tailored to their interests, while others want a trusted publication to tell them what matters.
Publishers should therefore treat personalisation as a product strategy rather than simply an automation project. Its value should be measured through retention, frequency, conversion and production efficiency, not clicks alone.
Google, Meta and Amazon capture more of the advertising market
Google, Meta and Amazon now account for 56% of US advertising revenue, up from 53% the previous year. This growing Platform Concentration shows how quickly advertising investment is consolidating around companies with large audiences, extensive data and integrated buying systems.
For publishers, the challenge is not simply that Google, Meta and Amazon have scale. These platforms also make it easy for advertisers to connect targeting, creative, delivery and measurement within a single environment.
The open web needs to offer a clearer alternative. Ozone’s launch of Arc, which uses audience journey data to optimise conversions across premium publisher sites, is one example of publishers and their partners trying to compete more directly for performance budgets.
Premium Publisher Inventory can offer quality content, trusted environments and valuable first-party audience signals. However, advertisers also expect accessible supply, measurable outcomes and straightforward activation.
Publishers may therefore need to collaborate more closely through shared infrastructure, curated marketplaces and common measurement frameworks. Premium inventory becomes more competitive when buyers can access it at scale without unnecessary complexity.
Supply-side platforms regain momentum
Recent financial results suggest that Supply-Side Platforms are performing better than some previously favoured areas of ad tech.
According to figures compiled by AInvest, Magnite and PubMatic each recorded approximately 11% year-on-year revenue growth in the second quarter of 2026. The Trade Desk grew by 3%, while Teads and Criteo reported revenue declines. Measurement companies have also faced slower growth and further consolidation.
This relative Revenue Growth suggests that the sell side remains valuable, despite earlier expectations that SSPs would become commoditised. Publishers still need technology that can connect inventory with demand, manage increasingly complex auctions and support emerging channels such as connected television.
SSPs are also trying to move beyond their traditional role as auction intermediaries. TripleLift, for example, describes itself as a creative SSP and is investing in creative orchestration, data, CTV and AI-supported buying through its TL Spark platform.
However, publishers should not assume that stronger SSP performance automatically creates better publisher outcomes. They still need to assess whether partners provide incremental demand, transparent reporting, reasonable fees and measurable revenue improvements.
The wider Ad Tech Consolidation also deserves attention. DoubleVerify, Integral Ad Science and LiveRamp have all been involved in acquisition or privatisation activity, indicating that ownership across independent ad tech is changing.
As providers consolidate or reposition, publishers should understand where their data flows, how commercial incentives may change and whether their monetisation stack remains flexible enough to accommodate new partners.
What these signals mean for publishers
Publishers are being pushed to create more value from their existing audiences while competing with increasingly concentrated advertising platforms. Personalisation can support engagement and efficiency, but it needs a clear connection to retention and revenue.
At the same time, renewed momentum on the sell side gives publishers more options. The priority should be choosing partners and strategies that improve transparency, preserve flexibility and turn audience relationships into sustainable revenue.
