Google Adwords is Google's online advertising program that lets businesses reach new customers and grow by placing ads in Google search results. Key benefits include choosing where ads appear, setting a budget, measuring impact, and no minimum spending commitment. Advertisers pay only when ads are shown, clicked, or generate other actions like video views. Accounts are organized by creating ads, enhancing them with extensions, understanding ad position and rank, and evaluating quality score based on expected click-through rate, relevance, and landing page experience.