1. Center For Language Education And Cooperation

Website: www.chinese.cn

2.  Chinese Plus

Website: www.chineseplus.net

Mobile app download scan this QR code

3. Chinese Bridge

Website: http://bridge.chinese.cn/ 

4. MOOC of Chinese universities (MOOC)

Website: www.icourse163.org

HSK4 intensive course:

https://www.icourse163.org/course/BLCU-1206307850?from=searchPage

5. Wechat account for  learning Chinese 

Learning Chinese

学汉语那些事儿

学汉语吧

中文联盟