1. Superstar Electronic Library: The collection of electronic books is rich in content, including more than 50 disciplines such as classical theory, philosophy, social science, economy, language, literature, mathematics, physics and chemistry, biology, industrial technology and computer. At present, there are 800,000 kinds of electronic books, 3 million papers and more than 400 million full-text books in China, which are constantly updated and increased every day.

2. Scholar's House Digital Library: It mainly includes new books published after 1999, and its collection is more than half of the new books published every year in China. At present, it has150,000 books, with a considerable number and complete disciplines.

3. Full-text Database of China Academic Journals: The products of this database are divided into ten photo albums: Science and Technology A, Science and Technology B, Science and Technology C, Agriculture, Medicine and Health, Literature, History and Philosophy, Politics, Military and Law, Education and Social Science Synthesis, Electronic Technology and Information Science, Economy and Management. The album is divided into several topics, *** 168 topic.

4. VIP Chinese Sci-tech Periodical Database: According to China Library Classification, all documents are divided into 8 atlases: social science, natural science, engineering technology, medicine and health, agricultural science, economic management, educational science and library information. These 8 albums are subdivided into 36 topics.

5. Features of Wanfang Digital Journals: At present, more than 70 categories including science, engineering, agriculture, medicine and humanities, and more than 2,500 core journals of science and technology have been included, realizing full-text online. Periodicals included in the system include seven categories: basic science, agricultural science, social science, philosophy, politics and law, medicine and health, education, literature and art, economy and finance.

The Internet, also known as the Internet, refers to a huge network connected in series, and the networks are connected through a set of common protocols to logically form a single huge international network. The Internet began in 1969 in the United States. The general Internet refers to the general Internet, and the Internet refers to the special Internet.