What do you mean by a general online letter enterprise?

Generally speaking, "network letter enterprise" refers to an enterprise engaged in Internet and information communication related business. According to the query of China Popular Science Network, "net letter" is the abbreviation of "network and information dissemination". Such enterprises involve a wide range of fields, including Internet service providers (such as telecom operators and broadband service providers), Internet platform and application providers, e-commerce enterprises, cloud computing and big data service providers, Internet finance and payment institutions, and network security service providers. These enterprises play an important role in the Internet industry, promoting the development of information technology and the popularization and application of the Internet. They provide various network and information communication services to facilitate people's communication, exchange, entertainment, shopping and other activities.