・The Encyclopedia Dictionary of the Chinese Language (中文大辭典) - It contains more than 80 million words.
・Han yu da ci dian - The comprehensive dictionary of Chinese. 
・Oxford Bibliographies (Chinese Studies)
It provides accurate and reliable resources for various topics in Chinese Studies. Each entry contains original commentary and annotated bibliographies. Good place to start research project. [Index] [English]
・Quan guo tu shu shu mu zi xun wang: National Bibliographic Information Network (NBINet)
The network includes three bibliographic databases: NBINet Union Catalog (Taiwan), Chinese Publications in China and Chinese rare books. [Index] [Chinese] 
