This website contains a lot of short and easy-to-access articles about science and technology related articles (although they are usually very lightweight, you don't need to actually be a professio... Read more.

jandan.net

This site collects almost a thousand textbooks used in Chinese schools, ranging from grade 1 up to senior high school. Subjects cover Chinese, mathematics, English, physics, chemistry, biology, his... Read more.

dzkbw.com

This is a comprehensive introduction to the world of digital Chinese, including the following: Script Basics Activate Keyboards for Typing Browser Recommendations Web Developm... Read more.

sites.psu.edu

From the about page: Phonemica is a crowd-sourced project to record spoken stories in every one of the thousands of varieties of Chinese. We believe that each language and dialect is a priceless... Read more.

phonemica.net