Is there online corpus for the Chinese language?
For a big-data Chinese corpus, have a look at this one:


  (Taiwan) Academia Sinica Balanced Corpus of Modern Chinese 台灣 中央研究院 中文詞知識庫小組 現代漢語平衡語料庫



A million-word level corpus
Contact: Miss Su-Chu Lin (林素朱), jess@hp.iis.sinica.edu.tw
Introduction in Chinese
Not sure if you can download it for free