This report discusses the concept of digital business, its advantages and disadvantages, different digital business models, and the impact of collaborative alliances on eBay. It also highlights e-commerce principles in the context of eBay. The advantages of digital business include increased efficiency and productivity, innovation, improved teamwork and communication, and higher customer share and sales. However, there are also disadvantages such as increased dependency on technology, security and privacy issues, and heightened competition. The report further explores digital business models like the freemium model, on-demand model, subscription model, and e-commerce model. It also discusses the impact of strategic alliances and collaborative relationships on eBay, including the advantages of speed of entry, increased sales, innovation, and enhanced distribution channels. Lastly, the report touches upon e-commerce principles and their relevance to eBay.