An online seller is a person or business that sells products or services over the internet. Online sellers typically operate through an e-commerce platform, such as an online store or marketplaces like Amazon or eBay. They may sell a wide range of products, from physical goods like clothing, electronics, and home goods, to digital products like software, music, and ebooks. Online sellers often have the ability to reach a global market and can sell to customers around the world. They may use various marketing and sales techniques to attract customers, such as search engine optimization, social media marketing, and email marketing. Some online sellers also offer customer service and support through email, phone, or online chat.