Commerce media is capturing a growing share of advertiser budgets by targeting consumers at a moment traditional channels miss: when they're actively making a purchase. This year, commerce media is expected to reach nearly 21% of digital ad spending and nearly 17.5% of total media spend, according to EMARKETER's April forecast.

This FAQ addresses what commerce media is, how it differs from retail media, and where growth opportunities exist for advertisers in 2026.

Substack is testing its first structured sponsorship program, allowing selected writers to insert paid brand placements directly into newsletters—an opt-in beta that keeps creators in full control and avoids programmatic ads. The move follows significant audience growth, with US uniques doubling in a year, but minimal marketer adoption: only 5% of brand marketers use Substack today. Sponsorships offer a way to monetize large free audiences while preserving the platform’s editorial identity. For advertisers, the beta introduces a premium, high-intent environment suited to thought leadership and niche expertise—an early indication that creator newsletters may become more formal components of influencer and upper-funnel strategy.

Reddit’s Q3 earnings confirmed what advertisers have suspected: the platform’s community-driven ad model can scale profitably. Revenue jumped 68% to $585 million, crushing Wall Street estimates, while EPS of $0.80 easily beat forecasts. Global daily actives climbed 19% to 116 million, though US user growth slowed to 7%, down from 12% last quarter. Data licensing revenue rose 7% as Reddit continues to defend its content from unauthorized AI scraping—a fight central to its long-term strategy. For advertisers, Reddit’s results underscore its strength as a high-intent, performance-focused channel—even as slower domestic user growth raises questions about future expansion.

Travel media networks like Marriott, Expedia, and Uber are tapping loyalty data to compete in commerce media. To drive growth, TMNs are turning to off-site activations, cross-industry partnerships, and non-endemic advertising.