The document analyzes e-commerce strategies of four types of companies: market leader, market challenger, market follower, and market nicher. It provides examples and strategies for each type. The market leader example is Amazon, with strategies around expanding its online retail, Amazon Web Services, and Kindle businesses. The market challenger is eBay, focusing on acquisitions and mobile platforms. The market follower, Walmart, pursues international expansion and targeting high-income consumers. The market nicher, Netflix, aims for domestic and international growth while improving customer experience.