Podcast episode
Episode 172: Mark Stenberg on Vox, Ziff-Davis, and How Publishers are Taking Control of Distribution
ai-in-adtech m-and-a podcasting publisher-economics walled-gardens
TL;DR
Adweek's Mark Stenberg walks through how digital publishers are restructuring around assets they actually control — podcasts, newsletters, apps and "dark social" sharing — as search and social referral traffic erode under AI. Concrete case studies: Vox Media is near-certain to spin off its profitable podcast network (bidders: Versant and James Murdoch's Lupa Systems), while Ziff Davis is counterintuitively buying distressed legacy brands (Dwell, Domino, PopSci). The back half covers OpenAI's ad launch, AppLovin's blowout quarter, the Taboola/Teads divergence, and the Kochava FTC settlement. Worth a listen for publisher and CTV operators tracking distribution economics.
What was covered
- Vox Media breakup: The Vox Media Podcast Network spinoff is described as a "near certainty." Two bidders: Versant (the cable-network spinco Comcast/NBCU created) and James Murdoch's Lupa Systems, who reportedly wants both the podcast network and New York Magazine — the most lucrative and most prestigious assets respectively. Penske Media invested $100M for ~20% in 2023 (implied ~$400M pre-money), and as last money in may be steering toward a sale to recoup. Leftover web brands (The Verge, Eater, Vox.com, The Dodo) become a "dog's breakfast" hard to place.
- Why podcasts beat websites: Stenberg's thesis — podcasts and newsletters create direct, owned, one-to-one audience relationships, whereas web brands depend on search/social referral that AI is wiping out. Vox's podcast unit has its own sales team and is the growth engine; selling the best asset hollows out the remaining portfolio.
- Ziff Davis counter-strategy: Ziff Davis (CEO Vivek Shah) is buying distressed legacy brands — Business of Home, Dwell, Domino, and 187-year-old PopSci — to build a lifestyle/home vertical and broaden a male-heavy audience. Funded partly by ~$1.2B from selling its connectivity business to Accenture. Thesis (echoing Neil Vogel at Dotdash Meredith): own the brand, monetize off-web via merch, subscriptions, products.
- Dark social and push notifications as distribution: Chartbeat data showed "external traffic" (no referrer — i.e., peer-to-peer text sharing or push notifications) rising while search/social decline. Drivers: publishers pushing dedicated readers into apps (better push targeting/personalization) and normalizing gift articles. Adweek's own social team now uses shares, not likes/comments, as the primary KPI.
- OpenAI ad launch: OpenAI rolled out ad infrastructure — a pixel, conversion API, and partners including StackAdapt, PartView, Cargo and Criteo. Self-serve, no minimums. Hosts called it widely expected and dismissed earlier panic over $60 CPMs in the preview. Debate on whether budgets move quickly; Stenberg predicts ads become "a relevant line item" within a year given high engagement with "answer engines."
- AI-generated content/slop: Amazon's auto-generated product podcasts (two synthetic hosts discussing e.g. toothpaste) and a Bloomberg-covered company mass-producing podcasts with synthetic avatars. Skepticism about user value vs. zero-cost content flooding.
- Earnings — AppLovin: Quarterly revenue +59% to $1.84B; framed as the biggest and fastest-growing player outside the four walled gardens. Growth vectors: in-app installs (maturing share), e-commerce, and CTV via Wurl.
- Earnings — Taboola vs. Teads: Taboola posted $466M revenue (~$2B annual run rate), up, with a curious unexplained $77M favorable legal settlement; stock up ~30%. Teads (the renamed Outbrain after the merger) reported $266M, down YoY, with substantial acquisition-related debt and projected ~$100M EBITDA. Paul Knegten (ex-Outbrain CMO) explained the merger's unrealized pricing-arbitrage thesis (owned-and-operated "code on page" inventory + outstream demand).
- Kochava FTC settlement: The long-running FTC location-data suit settled; Kochava must now obtain consumer permission to share data. Tied historically to post-Dobbs concerns about location data near abortion clinics.
Notable claims & predictions
- "The podcast network spinoff is a near certainty… that's almost guaranteed going to happen." — Mark Stenberg, on Vox Media.
- "It's like you're building a life raft for a cruise liner, but then the life raft becomes more appealing than the cruise liner." — Ari Paparo, on podcasts overtaking the web properties they were meant to support.
- "Constructive business strategy is if the internet was nothing more than a showcase for your brand, but not a source of traffic." — Stenberg, summarizing the publisher pivot off the open web.
- "I would imagine within a year, advertising starts to be a relevant line item." — Stenberg on OpenAI ads, citing engagement as the key driver.
- "Whoever invented the idea of the gift article… might have been the most impactful marketing idea in publishing in the last 10 years." — Paul Knegten.
- "There's no company that is putting up numbers like that… the biggest and fastest growing of everybody else." — Ari Paparo on AppLovin (+59% to $1.84B/quarter).
- "I'm really not a fan of location data being available for sale. I think there's just no way to make it privacy safe." — Ari Paparo, on Kochava.
Full analysis
Decision Council — Briefing Mode
Step 1 — Frame
The through-line of this episode is one structural shift dressed up as several news items: the open web's referral engine is breaking, and every player is repositioning around audience they actually own. Publishers are fleeing search/social dependency (Vox selling podcasts, Ziff Davis buying brands, dark-social rising). Meanwhile a new traffic source — AI answer engines — is starting to carry ads (OpenAI's launch). And the performance-marketing money is consolidating outside the open web entirely (AppLovin's blowout, Taboola/Teads divergence).
What's actually being decided (by the ecosystem, not by any one firm): where does audience attention live in three years, and which assets retain pricing power when Google and social stop sending free traffic?
Reversibility: Type 1 for publishers. Decisions to dismantle a portfolio (Vox) or pivot to off-web monetization (Ziff Davis) are hard to unwind. The OpenAI ads question is Type 2 for advertisers — easy to test, easy to pause.
Timeline / forcing function: AI referral erosion is happening now, not on a roadmap. Stenberg's "within a year" call on OpenAI ads is the nearest forcing function for buyers.
No clarifying questions needed — the episode is rich enough to work from.
Step 2 — The Council
The Skeptic The load-bearing assumption everywhere is that "owned audience" equals "durable revenue." It doesn't automatically. Podcasts feel defensible because they're hard to measure — which is also why they're undermonetized and vulnerable to the same CPM pressure once measurement improves. Vox's podcast unit is the prize today partly because the rest of the portfolio looks terrible by comparison, not because podcast economics are bulletproof. And dark social? You can't sell what you can't attribute. A traffic source with "no referrer" is a metric publishers love precisely because it can't be audited. Plain version: "owned" doesn't mean "monetizable" — some of these safe harbors are safe only because nobody's measuring them yet.
The Operator Tuesday morning, a publisher revenue lead has to actually run this. Selling the podcast network means you keep a web business whose best salespeople and growth story just walked out the door — the "dog's breakfast" problem is real and it breaks fast. The Ziff Davis playbook (buy distressed brands, monetize off-web via merch and subscriptions) requires operational muscle most publishers don't have: commerce ops, fulfillment, subscription churn management. That's a different company. And pushing readers into apps for better push targeting sounds clean until you model the 90-day reality: app install costs, notification fatigue, and the fact that maybe 3% of your audience ever installs anything. Plain version: the strategy slides are easy; the org you need to execute them is the hard part.
The Customer / Media Buyer From the buyer's seat, two things matter here. First, OpenAI ads: self-serve, no minimums, a pixel and conversion API, Criteo and StackAdapt on board — that's a real buying surface, not a science project. Buyers will test it because the engagement story is plausible and the cost of trying is low. But "relevant line item within a year" is a seller's framing; budgets move when measurement and attribution exist, and answer-engine attribution is unsolved. Second, AppLovin and Taboola tell buyers where performance dollars actually convert: increasingly not the open web. If you're a brand, your money is being pulled toward closed performance environments whether your media plan admits it or not. Plain version: advertisers will dabble in AI ads cheaply, but the big money is already migrating to a handful of performance machines.
The CFO Follow the cash, and the episode is clearer than the narrative. Penske put $100M into Vox in 2023 and as "last money in" wants out — the podcast sale is partly a recovery operation, not a strategic masterstroke. Ziff Davis is buying distressed brands with $1.2B of connectivity-sale money — they're redeploying a windfall, which means the bar for ROI is low and the buys may be cheap optionality, not conviction. Taboola vs. Teads is the cleanest lesson: Teads carries heavy merger debt, ~$100M EBITDA against it, revenue down; Taboola's "win" includes an unexplained $77M legal settlement propping the print. Be suspicious of one-time items dressed as momentum. Plain version: several of these "strategy" stories are really balance-sheet stories — debt, windfalls, and recovering a bad investment.
The Long-Term Thinker Three years out, the question is whether the open web becomes a brand showcase rather than a traffic source — Stenberg's own framing. If that's right, the entire ad-tech stack built to monetize open-web page views (SSPs, programmatic display, header bidding) is monetizing a shrinking pool. The winners compound: owned relationships (podcasts, newsletters, apps), retail media, walled performance platforms, and whatever ad surface AI answer engines become. The losers are mid-tier publishers without a direct relationship and the intermediaries who taxed referral traffic. AppLovin's +59% isn't a fluke — it's a preview of where attention and conversion are consolidating. Plain version: the plumbing built for the old web keeps working but on a smaller and smaller pipe.
Step 3 — The Tensions
1. Is "owned audience" durable value or a measurement mirage? The Long-Term Thinker and the Operator believe direct relationships are the future. The Skeptic and CFO note that podcasts and dark social are prized partly because they're unmeasured — and that pricing power evaporates the moment attribution arrives. Vox selling its crown jewel rather than building on it cuts against the "this is the future" thesis.
2. Does OpenAI ads matter in 12 months, or is that seller hype? The Customer/Buyer says budgets test cheaply but scale only with attribution that doesn't exist yet. Stenberg's "relevant line item within a year" assumes engagement converts to spend faster than measurement infrastructure can be built. History (retail media, CTV) says infrastructure lags hype by years.
3. Is the publisher pivot strategic or financial? The CFO reads Vox and Ziff Davis as balance-sheet moves (recover an investment; redeploy a windfall). The strategists read them as the open-web exit. Both can be true — but it changes what you should copy.
Step 4 — Synthesis
What this hinges on: one belief — that AI is permanently breaking the search-and-social referral economy that funded the open web. The episode treats this as settled. It's probably directionally right but the speed is unknown, and speed is everything for anyone with a P&L tied to page views.
Which way the council leans: Strongly toward "the structural shift is real, the individual moves are noisier than they look." The macro signal — performance money consolidating into closed platforms (AppLovin), publishers fleeing referral dependency, AI building an ad surface — is coherent and worth acting on. The specific case studies (Vox, Ziff Davis, Taboola) are heavily contaminated by debt, windfalls, and one-time items, so don't over-learn from any single one.
Net impact rating: Medium-high for publishers, medium for buyers, lower-but-real for ad-tech intermediaries. This isn't a single market-moving event; it's a well-articulated map of a slow tectonic shift.
What to verify or de-risk before acting:
- Publishers: Before copying the "own the audience" pivot, model whether your owned channels can be monetized, not just retained. If you can't attribute dark social or price podcast inventory at a premium, you've swapped a declining-but-measurable revenue stream for a stable-but-unsellable one. Build the commerce/subscription muscle before you bet the portfolio on it.
- Media buyers: Run a small, instrumented OpenAI ads test now — the cost of learning is low and first-mover learnings on answer-engine creative will matter. But don't reallocate real budget until conversion attribution exists. Treat "relevant line item within a year" as a hypothesis to test, not a forecast to plan around.
- SSPs / programmatic intermediaries: Take the open-web-as-showcase thesis seriously as a planning scenario. Your addressable inventory pool may be flat-to-shrinking even as ad spend grows, because spend is migrating to surfaces you don't touch. Diversify toward CTV, retail media, and commerce signals now.
- Everyone: Discount the Taboola "30% pop" and Vox "near certainty" framing. One had a $77M one-time gain; the other is partly an investor recouping. Strong narratives, weak evidence.
My view: The most important line in the episode isn't about Vox or OpenAI — it's the framing that the internet becomes "a showcase for your brand, but not a source of traffic." If that's true, the entire industry's center of gravity moves toward owned relationships and closed performance platforms, and the open programmatic web becomes the low-margin tail. AppLovin's number is the loudest evidence that the money already believes this. Act on the trend; ignore the individual headlines.
What did we miss? Is there a persona we should add for this specific decision? I considered adding The General Counsel — the Kochava settlement (consent required before sharing location data) is a quiet but real precedent for every measurement and identity vendor cataloging data offerings publicly. Worth a seat if your reader sits in identity, mobile measurement, or data licensing. Want me to add that lens?
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