The document discusses various ecommerce service models including drop shipping, wholesaling and warehousing, white-labeling, subscription-based models, e-shops, and e-malls. It provides descriptions and diagrams of how drop shipping, wholesaling and warehousing, and white-labeling business models work. It also includes examples of revenue models like the sharing economy model, hook and bait model, freemium model, subscription model, transaction fee model, affiliate model, and advertising model.