Programmatic advertising is simply using technology to automatically buy and sell digital ad space. It's not a type of ad you see, but a hyper-fast, data-driven way of placing those ads. Think of it as ditching the slow, manual negotiation process for instant, intelligent auctions. For example, when you visit a weather website and see an ad for a local car dealership, that ad was likely placed there in milliseconds through a programmatic auction tailored just for you.