COJ provides about 7,000 full-text journal titles published in China, covering over 90% of the core journals.

With cover-to-cover display features, COJ allows readers to browse journals similar as print copies.

The online collections are broadly categorized into subjects, providing researchers with wide selections to locate information they need.
 
Main features of COJ include:

• Covers over 90% of the core journals in China
• Covers Full-text in PDF file (OCR), easy to read and deliver
• 7,085 Periodicals (as of November 2011)

China Online Journals (COJ) in Business/Economics, Arts/Humanities, Law/Politics and Social Sciences

The collections of Arts/Humanities/Social Sciences are most popular among researchers who are interested in Chinese Studies. Law/Politics and Business/Economics collections support education and commercial applications for academic institutes, law firms, government agencies and business units.

The databases feature core journals in the fields and a unique broad collection of Chinese university journals, which are a main research source in humanities and social sciences in China.

Coverage: From 1997 onwards
Numbers of Journals: (as of November 2011)
Business & Economics: 817
Arts & Humanities: 732
Law & Politics: 556
Social Sciences: 1,392
Update Rate: Weekly

China Online Journals (COJ) in Health/Medicine/Biology

The China online journals database of Health/Medicine/Biology include broad and unique collection of medical journals, making the database a valuable tool for Chinese medical/biological research.

The database features core journals in the field of medical published by the Chinese Medical Association, an authoritative institution of medical research in China.

Coverage: From 1997 onwards
Number of Journals: 1,203 (as of November 2011)
Update Rate: Weekly

China Online Journals (COJ) in Fundamental Sciences

The database of China online journals in Fundamental Sciences covers mathematics, physics, chemistry, astronomy, geosciences, and dynamics. The database features core journals in the field and university journals, a main source of research in China.

Coverage: From 1997 onwards
Number of Journals: 812 (as of November 2011)
Update Rate: Weekly

China Online Journals (COJ) in Science & Technology

The database of China online journals in Science & Technology covers a broad range of research topics, including Aeronautics & Astronautics, Architecture, Atomic Energy, Automation & Computer Science, Chemical Engineering, Electrical Engineering, Energy, Environment & Security Science, Light & Handicraft Industry, Metallurgy, Metal & Metal crafts, Mechanics & Instruments, Military Science, Mining Engineering, Petroleum & Natural Gas, Transportation, Water Conservation, and Wireless Electronics & Telecommunications.

The database also features core journals in the field and university journals, a main source of research in China.

Coverage: From 1997 onwards
Number of Journals: 1,996 (as of November 2011)
Update Rate: Weekly

China Online Journals (COJ) in Agriculture
 
The database of China online journals in Agriculture features core journals in the field and university journals, a main source of research in China. The broad and unique collection of journals makes the database a great asset for agricultural research.

Coverage: From 1997 onwards
Number of Journals:524 (as of November 2011 ) 
Update Rate: Weekly