Google Ads is an online advertising platform that allows businesses to promote their products or services on Google Search, YouTube, websites, mobile apps, and Google Maps. It works mainly on a pay-per-click basis, meaning advertisers usually pay only when someone clicks their ad. Its key features include keyword targeting, location and language targeting, audience targeting, flexible budgets, different ad formats such as text, display, video, and shopping ads, and detailed performance reports. Google Ads also helps businesses measure clicks, conversions, costs, and return on investment, making campaigns easier to optimize.