Online business refers to any commercial activity that takes place over the internet. This can include selling products or services through websites, social media platforms, or online marketplaces like Amazon and eBay. Businesses can operate entirely online or use a combination of physical and digital presence. The growth of online business has been fueled by advancements in technology and increased internet access. Entrepreneurs can reach a global audience, reduce overhead costs, and utilize digital marketing strategies to promote their offerings. Popular online business models include e-commerce, subscription services, and affiliate marketing.