- China Historical Geographic Information System (CHGIS) / 中国历史地理信息系统
CHGIS provides historical geographical data about China (except for four provinces:Neimeng, Qinghai, Xinjiang, and Xizang) between 221 BCE and 1911 CE.
- Chinese Population Geographic Information System (CPGIS) / 中国人口地理信息系统
CPGIS aims at including county-level population geographic data of all Chinese historical periods. Currently available are data of the years 1820, 1910, 1936 and 2000.
A geographical information system integrating data about scholars in the Song Dynasty and masters poems of Song.