Links
Some good lists of other resources:
https://www.alllanguageresources.com/chinese-resources/
http://challenges.hackingchinese.com/resources
http://www.sinosplice.com/learn-chinese/online-chinese-resources
Pinyin
* Sinosplice: Pronunciation Misconceptions
- ChinesePod: Pinyin Program|| subscription required
Pinyin.info ||