In a year marked by platform volatility, AI acceleration, tariff shocks, and shifting consumer behavior, marketers searched for clarity across EMARKETER’s most-read topics. The top 10 themes reflect where advertiser attention truly moved in 2025. These trends captured the forces reshaping performance, discovery, and measurement: AI-driven optimization, creator-centric social ecosystems, commerce-led advertising, and CTV’s rise as the new premium video default. Together, they tell the story of a market recalibrating around efficiency, accountability, and cultural relevance as marketers prepared their 2026 strategies.

Advertisers must understand what makes influencer marketing effective and prioritize vetting to combat distrust.

Reels video views for luxury brands grew 234% in Q2 2025, while TikTok slowed as brands face a shift that necessitates a rebalance in content distribution.

Consumers increase support for brands who stand by LGBTQ+ initiatives, and advertisers who back away face challenges in reaching the next wave of consumers.

TikTok’s 2026 looks just as uncertain as 2025: Despite new US owners, questions remain about content moderation and its algorithm

Gaming ads offer high engagement in a market that is underutilized relative to its potential.

New data shows traditional SEO success no longer guarantees visibility inside generative AI answers. Ahrefs found that fewer than 9% of ChatGPT and Gemini citations come from URLs ranked in Google’s top 10 results—meaning more than 90% of high-ranking organic pages never appear in AI responses. Instead, LLMs lean heavily on community-driven sources like Reddit, YouTube, Wikipedia, Yelp, and TripAdvisor, dramatically reshaping early-stage discovery. With LLM usage exceeding one billion monthly users, brands that do not participate in open forums risk disappearing from AI-mediated journeys. Marketers must treat GEO as a distinct discipline, not an extension of SEO.

The most impactful ads of 2025 stirred debate and dollars: From Sydney Sweeney to Katseye to Coca-Cola.

As consumers become adept at ignoring ads, avoiding dreaded ad fatigue requires brands to prioritize creativity and interactivity.

Tailoring marketing to Gen Alpha is proving critical for brands looking to capitalize on their emerging influence.

Instagram's explosive EU audience growth compared with Facebook's slowing momentum means advertisers should follow suit.

Audiences say TV is the most acceptable place for advertising, but amid the shift to digital for younger buyers, a balanced approach is critical.

The Trade Desk is laying off fewer than 1% of its 3,900 employees, a small reduction that nonetheless comes at a pivotal competitive moment. The cuts follow notable departures and last year’s major reorganization, as TTD prepares for an AI-first future centered on Kokai. Agencies say Amazon’s DSP is winning share with lower fees and strong performance, pushing TTD to negotiate pricing and offer service incentives once considered off-limits. At the same time, scrutiny over transparency, reseller accountability, and TTD’s OpenAds wrapper is rising. For marketers, the moves signal a company recalibrating—not retreating—as it works to steady growth heading into 2026.

Amazon is recalibrating its relationship with the agencies and adtech firms that helped build its retail-media dominance. While Amazon insists agencies remain central, many intermediaries say rising data costs and tool duplication echo earlier platform playbooks from Google and Meta—centralize strengths, limit external dependencies, and scale in-house automation. The result is a more controlled, AI-driven ecosystem that may reduce tooling diversity while boosting Amazon’s own ad stack. For marketers, the challenge will be balancing Amazon’s convenience and scale with the flexibility, transparency, and customization offered by independent partners.

TikTok has agreed to a sweeping US restructuring that creates a majority-American–controlled joint venture, fulfilling bipartisan divestment demands and reducing the threat of an outright ban. Oracle, Silver Lake, and MGX will hold 50% ownership, with US-appointed directors overseeing data protection, moderation, and the retraining of TikTok’s recommendation algorithm. ByteDance will retain a minority 19.9% stake and continue managing global operations outside the US. The shift brings long-missing stability for advertisers but also creates operational distance from ByteDance’s global systems, potentially slowing innovation and altering performance patterns. The next year will be a critical recalibration period for brands and creators.

Even as the majority of podcasters (71%) use video, per Sounds Profitable, video podcast ads are falling short of driving purchases compared with audio ads. YouTube’s video podcast ads are 18% to 25% less effective than audio downloads at driving users to purchase, according to an Oxford Road and Podscribe study. Video podcast consumption is growing, and YouTube remains the largest media platform globally, but advertisers looking to target podcast consumers specifically must make audio a core part of their campaign planning.

YouTube is experimenting with AI avatars based on a small group of popular creators via Google’s “Portraits” feature, which allows fans to have conversations with AI versions of real-life creators. Advertisers should approach AI creators with cautious interest, closely monitoring how the format evolves as an ad opportunity while balancing emerging AI capabilities with consumers’ sensitivity to authenticity.

NBCUniversal (NBCU) debuted AI-powered ad features ahead of the upcoming Consumer Electronics Show in 2026, giving advertisers the opportunity to leverage AI for better results in live TV and video-on-demand properties. Campaigns running on NBCU properties now gain access to the massive benefits of utilizing AI for TV, CTV, and VOD advertising.

The Academy Awards will leave ABC after nearly 50 years and stream exclusively on YouTube beginning in 2029—a decisive acknowledgment that audience attention has migrated to digital TV. The deal gives the Academy expanded year-round programming options, flexible sponsorship formats, and a global distribution footprint that linear networks can no longer match. YouTube, now the No. 1 source of US TV viewing time at 13%, gains a premier cultural event as it continues its push into live programming alongside NFL Sunday Ticket. For marketers, the Oscars’ move underscores how YouTube has become the industry’s default television—and a must-buy for premium reach.

Integral Ad Science is expanding far beyond verification with IAS Agent, a DSP-embedded AI assistant that analyzes live campaign data and autonomously optimizes safety, suitability, and contextual settings. Built on IAS’s multimodal dataset, the tool evaluates trillions of signals across text, video, audio, and imagery to refine targeting decisions faster than human workflows—early testers reported efficiency gains and reduced waste. IAS frames the product as a step toward agentic advertising, enabling real-time optimization, natural-language insights, and interoperability with other AI systems. The launch comes as private equity bets heavily on independent measurement players amid rising demand for precision and transparency.