Chinese Pronunciation Guide (By Harvard University) One of the first sites introducing Pinyin system. Sound and exercises are available. Helps you learn Chinese with a good foundation.
GR Junction (By Warmington, Richard) A web site to introduce Gwoyeu Romatzyh 国语罗马字
Pinyin Practice (By Peterka, Alan) Online drills to practice Chinese Pinyin.
Pronunciation of madarin Chinese (By sinosplice/) The purpose of this section is to clarify some important issues regarding the pronunciation of Mandarin Chinese.
