E-Commerce, Electronic Commerce, usually refers to a wide range of business around the world trade, in the Internet an open network environment, based on browser / server applications ways not met a variety of buyers and sellers trade activities to achieve consumer online shopping, online transactions between merchants and online electronic payment and a variety of business activities, trading activities, financial activities and activities related to integrated services a new business model. "China Internet Marketing Network" Tinlu related articles that cover a wide range of e-commerce in general can be divided into business to business (Business-to-Business), or business to consumer (Business-to-Consumer) two. 
 There are also consumer to consumer (Consumer-to-Consumer) pattern of growth in this step. With the increase in the domestic Internet user population, the use of Internet for online shopping and bank card payments gradually popular consumption patterns, market share is rapidly growing e-commerce sites are endless. The most common e-commerce security with SSL and SET both. 
 B2B, B2C, C2C, B2M four categories of e-business models. B2B refers to the Business to Business. As in businesses doing business with other businesses, merchants (refers to business) e-commerce to business, that business to business via the Internet products, services, and information exchange. Popular argument is that both supply and demand for e-commerce transactions are business (or business, the company), she (he) used the Internet for technology or a variety of business networking platform to complete the business transaction. These include: supply and demand release of information, order and confirm the order and payment process and notes issued, send and receive, determine the distribution plan and monitor the distribution process and so on. Sometimes write B to B, but in order to easily and simply used the homonym B2B (2 or to). 
 B2C or business to customer B2C model is the model of the first generation of e-commerce, online store to 8848 marked the official carrier. B2C or business via the Internet to provide consumers with a new shopping environment - online store, consumers shop online through the network, the online payment. Because of this mode of saving consumers and businesses time and space, greatly improving the efficiency of the transaction, especially for busy office workers, this model can save their valuable time. 
 C2C the Consumer To Consumer. C2C with B2B, B2C, as is one of several models of e-commerce. The difference is that C2C is a user of the user's mode, C2C is a business platform for buyers and sellers by providing an online trading platform, so that the seller can take the initiative to provide goods online auction, the buyer can choose to bid on goods. 
 B2M refers to the Business to Manager B2M is relative to the B2B, B2C, C2C e-commerce model is concerned, is a new e-commerce model. E relative to which all three are essentially different, the fundamental difference is the different nature of target audience, the first three of the target audience is there as a consumer's identity, and B2M against customer base is the product of the enterprise or the sellers or their workers, rather than the final consumer.