AI Advertising: OpenAI expanded ChatGPT ads to 26 more countries, bringing the platform to 89 markets; more than 100,000 advertisers have used it. The rollout comes with new creative enhancements as AI shopping and recommendations draw brands’ attention. Media Spending: NBCUniversal said third-quarter advertising revenue rose 15%, led by Peacock and World Cup demand, while podcast advertising recorded its strongest month of 2026. Platforms and Publishers: The IAB Tech Lab chief says Apple’s ad-tech blocking is harming publishers, while an EU probe into Booking.com will examine scams and paid-search rankings. Agency Moves: Common Interest took a minority stake in U.S. creative shop Mirimar, expanding its push into branded entertainment; JOAN London won Hollywood Bowl’s creative account. Ad Rules: Australia’s planned 2027 ban on celebrities and sports stars in gambling ads is drawing industry guidance, as Canadian MPs move to restrict gambling advertising.