B2B is the exchange of products, services and information between enterprises through the Internet, such as Microsoft and Alibaba.

r B2C is the business model of selling products and services directly to consumers. This form of e-commerce is generally dominated by online retail, and mainly relies on the Internet to carry out online sales activities.

r O2O combines offline business opportunities with the Internet, making the Internet a platform for offline transactions. The concept of O2O is very broad, and the application scenarios can be online ordering, ticket booking, hotel booking, car washing, nail service, etc.

r Taobao’s more obvious model should be B2B and B2C. The platform provides a platform and services for merchants to sell products, which is B2B. At the same time, like other merchants on the platform, it also faces consumers and provides shopping services, which belongs to B2C to a certain extent.

r However, in today's mobile Internet, the boundaries of these common e-commerce models are becoming increasingly blurred. For example, many industries or companies have businesses for individuals and also do business in the enterprise market. They have both physical stores and online transactions. This makes it difficult to distinguish between B2C and B2B. Of course, with the continuous emergence of various new businesses, new models, and new companies, new models are also being explored, such as the "new retail" proposed by Jack Ma that integrates offline and online, and the S2B2c model that advocates providing personalized products and services according to consumer needs.

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