AI-powered search engine Perplexity says it’ll begin experimenting with ads on its platform starting this week. Ads will appear in the U.S. to start, formatted as “sponsored follow-up questions.” (E.g., “How can I use LinkedIn to enhance my job search?”) Paid media will be positioned to the side of answers, and labeled as “sponsored.” Brands and agency partners participating in Perplexity’s ad program include Indeed, Whole Foods, Universal McCann, and PMG. One of Perplexity’s experimental ad for...