On October 7, Nextdoor announced Neighborhood Intelligence, an AI-powered advertising engine built on a graph of 350,000 verified neighborhoods and now available on request to U.S. advertisers. In ZIP codes where Nextdoor has coverage, the company says there are about 12 distinct neighborhoods ton average, each with different conversations, household signals and local conditions. The decision that changes is not simply where to target an ad, but whether one message should sti

Amazon Ads has opened Full-Funnel Campaigns to U.S. advertisers, letting one AI system allocate a single budget across sponsored ads, display, video and streaming TV. That turns media buying from a set of channel decisions into one optimization problem spanning awareness through purchase. The decision now is whether the lift from shared signals is worth giving Amazon control over channel mix, audience selection and the metric used to judge success. The capability is deployed

YouTube’s dynamic brand segment pilot turns creator back catalogs into replaceable, regional ad inventory and changes how sponsorships should be priced.

Scope3’s Apostra rebrand puts agent-to-agent media buying at the center of ad tech, making explicit strategy and governance new sources of leverage.