Chinese Language Teaching and Learning Resources
Professor Marjorie Chan's extensive links.
http://chinalinks.osu.edu/c-links3.htm

How Hard is Chinese?
Very hard warns Professor William Baxter.
http://www-personal.umich.edu/~wbaxter/howhard.html

Learning Chinese Online
Dr. Tianwei Xie's collection of sites for learning Chinese.
http://www.csulb.edu/~txie/online.htm

The HSK Center of BLCU
The website of the Chinese Proficiency Test (HSK) Center, known as China's Hanyu Shuiping Kaoshi, of Beijing Language and Culture University, providing info on HSK timetable, registratration info, test centers, test report etc.
http://www.hsk.org.cn/english/Default.aspx

Practical Chinese Reader: Online Exercises
Self-tests for students who use the textbook Practical Chinese Reader (Lesson 1-30, some tests are missing.)
http://www.csulb.edu/~txie/PCRopen/selftest.htm

Yao Mandarin School
Learning Chinese with Yao Mandarin School is fast and enjoyable. Yao Mandarin school thrives to teach Chinese in a most efficient and pedagogical approach.
http://www.yaomandarinschool.com/toronto/