国家自然科学基金委员会
ScienceNet.cn () is a science virtual community and science blog. It was launched by Science Times Media Group (STMG) and is supported by the Chinese Academy of Sciences, the Chinese Academy of Engineering, and the National Natural Science Foundation of China with the mission of establishing global Chinese science community. Since its launch on January 18, 2007, a total of 5,553 scientists and graduate students have blogged on ScienceNet.