Online advertising refers to the practice of promoting products or services through the internet. It encompasses various formats, including display ads, social media promotions, and search engine marketing. Businesses leverage online advertising to reach a broader audience and engage potential customers effectively. With the rise of digital platforms, online advertising has become a crucial component of marketing strategies. Advertisers can target specific demographics and track the performance of their campaigns in real-time, allowing for more efficient use of marketing budgets and better return on investment.