Direct Sellers: Businesses that sell products directly to consumers, like retail stores and online marketplaces. Online Intermediaries: Platforms that facilitate transactions between buyers and sellers, such as eBay and Etsy. Advertising-based: Websites that attract a large audience and monetize through advertising, like YouTube and social media platforms. Community-based: Platforms that build a community around a specific interest and leverage it for sales, such as forums and fan clubs. Fee-based: Services that require a subscription or membership fee, like streaming services and premium news sites.