E-commerce websites are online platforms where people can buy and sell products or services. These sites allow customers to browse through various categories, add items to their shopping carts, and make purchases using secure payment methods. Popular examples of e-commerce websites include Amazon, eBay, and Etsy, which cater to different types of products and audiences. These websites often feature user-friendly designs, making it easy for shoppers to find what they need. Many e-commerce sites also provide customer reviews, detailed product descriptions, and recommendations to enhance the shopping experience. With the rise of mobile technology, many people now shop on e-commerce websites using their smartphones or tablets.