Retail media ad spending is booming in Latin America. Brazil and Mexico are leading the charge, with Mercado Libre outpacing in-market rivals. Here are the latest trends you need to know.

TikTok is laying off hundreds of UK staff as it shifts moderation to AI, with more than 85% of takedowns now automated. The cuts, part of a global restructuring, come as the UK’s Online Safety Act pressures platforms to strengthen oversight. Industry peers are also pivoting—Meta and X have scaled back fact-checking while Reddit, Pinterest, and Snapchat adopt varying models of control. Yet user sentiment runs counter: Most want more human oversight, not less, with strong demand for fact-checkers, privacy, and quality control. The divergence raises brand-safety questions as advertisers weigh cost efficiencies against consumer trust.

The news: Meta and Google still account for 88% of mobile ad spending despite shifting user habits, per a Moloco report. But while advertiser attention remains firmly focused on Big Tech, those that diversify their media mix could increase financial returns as much as 214%. Our take: As audiences become fragmented across social media, advertisers are increasingly faced with the need to look beyond the big players—but with big tech still commanding attention, a balanced approach is key.

Consumers in Japan have been slow to embrace digital technology, but they are gradually warming to it. Recent data shows consumers are changing their online shopping and media consumption behavior.

Some high-engagement platforms are still undermonetized—creating opportunities for advertisers to connect with audiences in less-saturated environments.

The trend: Most consumers are skeptical of the health information they see on social media, according to a new KFF survey. The big takeaway: Even as social media increasingly becomes a health information tool, consumers know there is plenty of medical misinformation and influencer self-promotion flooding the internet. But these survey findings also present an opportunity for healthcare brands and marketers to stand out from the crowd with platform-specific strategies that can help build customer relationships.

In an EMARKETER interview, Reddit COO Jen Wong shared optimism following the platform’s strong Q2, highlighting its focus on delivering ad outcomes over increasing ad load. Despite capturing just over 1% of US social ad spend, Reddit is growing ARPU through investments in machine learning, creative tools like Memorable AI, and advertiser infrastructure. Wong emphasized Reddit’s auction model supports full-funnel goals, while global expansion is underway through localized insights and self-serve adoption. She spotlighted Reddit Community Intelligence as a milestone, enabling brands to tap into decades of authentic discussion data. The company’s long-term bet: authenticity will outperform algorithms.

Time spent with social media is plateauing, but Gen Z and Gen Alpha are still platform-hopping. As Gen Zers steadily overtake millennials in terms of share, brands must understand the nuances of how each generation uses its platforms of choice.

After advertisers spent Q1 2025 reacting to the threat of tariffs, they shifted their focus back to the business of figuring out how social platforms’ automated offerings complement more established methods of investment.

Reddit posted a standout Q2 2025, with revenues jumping 78% year-over-year to $500 million—including $465 million in ad revenue, up 84%. Net income reached $89 million with strong EBITDA and free cash flow. Global DAUs grew 21% to 110.4 million, and US ARPU climbed 59% to $7.87, signaling improved monetization. Reddit is now a billion-dollar US ad business a year ahead of forecasts, driven by growth in AI ad tools. Yet challenges remain: Reddit still holds only 1.1% of US social ad spend and relies heavily on Google Search traffic. Sustaining growth means reshaping advertiser perception and boosting direct engagement.

The news: Reddit is positioning itself as a full-fledged search engine, with over 70 million weekly active users (WAUs) using its search functionality. As part of its strategy to house a full-fledged search engine within its website, the company is expanding its AI-powered conversational interface, Reddit Answers, and making it a central feature on the platform around the world. Reddit Answers has grown to 6 million WAUs from 1 million in December. Our take: If Reddit succeeds in becoming a self-sustaining search platform, it will become an even more valuable asset for marketers looking to target niche audiences and get in on the consumer purchase journey early. Advertisers should start identifying specific subreddits where their audience are already active, experiment with Reddit’s ad formats, and optimize content to surface in the platform’s search results.

The news: More than half (51%) of customer service journeys start on search engines and third-party platforms like Google, YouTube, Reddit, and ChatGPT—rather than company websites—prompting businesses to meet customers where they are, per a recent Gartner survey. Our take: Brands need to research and identify the platforms their customers rely on and establish fast, responsive service on those channels. The goal isn’t to pull users back to official websites—it’s to meet them where they already are, with the answers they need, when they need them. Using generative engine optimization (GEO) best practices to boost customer service answers in genAI outputs could help younger consumers get digestible, fast answers in their preferred channel.

The triopoly looks stronger, but it's digital that's getting bigger. Amazon, Google, and Meta now command 58.8% of total US ad dollars, up from 47.1% in 2020. But that's not an indication that the triopoly's control of the digital ad market is growing.

The news: Meta is axing political ads in the EU as of October, citing an uncertain regulatory environment with “unworkable requirements.” The company stated in a blog post that the pullback will include ads related to political, electoral, or social issues, and specifically pointed to conflicts with the EU’s Transparency and Targeting of Political Advertising (TTPA) regulation. Our take: Meta's decision signals how fast platforms can change ad policies and how little time marketers have to react. If labeling systems or ad review processes change for the EU—or broadly apply to topics adjacent to social issues—advertisers may need to recalibrate campaigns to avoid triggering enforcement.

B2B social media has evolved from an awareness tool into a central part of how brands build trust, influence buying decisions, and drive business growth. AI, video, and influencer marketing are reshaping strategies and raising expectations for measurable impact.

The news: Google’s AI Overviews feature gets users offline and out of search quickly, making it harder for brands and websites to capture attention and clicks. Only 8% of Google users whose search triggered an AI Overview clicked on a link, per Pew Research. Among those who didn’t see an AI summary, nearly twice as many (15%) clicked a link. Our take: Google’s AI tools offer fast answers, but they’re cutting off engagement before it can begin. For publishers, brands, and creators, that means fewer opportunities to connect, convert, or even be seen. Prioritize visibility on platforms favored by AI Overviews, like YouTube and Reddit, and strengthen owned channels like newsletters and apps to help boost appearance in results while reducing dependence on traffic from Google.

The news: Reddit’s ad business is on a path of steady growth, with ad revenues expected to reach $1.8 billion this year and grow 29% to reach $2.5 billion in 2026, per a new WARC forecast. Brand participation on Reddit shows promising results: One organic brand post per week increases positive mentions by 3.5%. Our take: Though Reddit’s massive growth is partially attributed to its smaller reach, its ability to reach users that aren’t frequenting more popular platforms warrants investment, and a diversified approach combining Reddit’s unique community-driven base with larger platforms’ massive reach is key.

The news: YouTube, Instagram, Twitch, and TikTok each offer unique advantages and drawbacks for gamer ad reach, per HypeAuditor’s 2025 State of Gaming report. Choosing the right platform depends on what kind of impact marketers want to make. Our take: Marketers should boost campaign performance with influencer partnerships on these platforms since creators often understand their audience better than companies do. Track success platform by platform to help tailor ad strategies, capitalize on UGC, and maximize return on investment.

AI is upending every aspect of marketing, from neuro-contextual ads that read emotions to autonomous shopping agents that make purchasing decisions. As tech giants consolidate control of the sector, six pivotal trends are reshaping advertising, search, and commerce.