CNKI is a key national research and information publishing institution in China, led by Tsinghua University, and supported by PRC Ministry of Education, PRC Ministry of Science, Propaganda Department of the Chinese Communist Party and PRC General Administration of Press and Publication (GAPP). This project was launched in 1996 by Tsinghua University and Tsinghua Tongfang Company. Its first database was China Academic Journals Full-text Database, which rapidly became popular in China, especially in academic libraries. In 1999, CNKI started to develop online databases. To date, CNKI has built a comprehensive China Integrated Knowledge Resources System, including journals, doctoral dissertations, masters' theses, proceedings, newspapers, yearbooks, statistical yearbooks, ebooks, patents and standards. 10 services centers have been established, in Beijing, North America, Japan, North Korea, Taiwan and Hong Kong, and it is widely used by universities, research institutes, governments, think tanks, companies, hospitals and public libraries around the world. It also contains e-books for student usage.