This site by Jun Da contains a lot of very interesting resources for anyone who wants dig deeper into frequency lists. One set of data I haven't found anywhere else is a frequency list of syllables... Read more.

lingua.mtsu.edu

A website on the etymology of Chinese characters, with a lot of images of their past forms from different periods. Read more.

chineseetymology.org

Ninchanese is a complete way to learn Chinese. Its online course allows you to learn and practice how to read, write, speak and understand Chinese in an enjoyable manner. It combines game mechanics... Read more.

ninchanese.com

The ultimate solution for quickly looking up Chinese words on your smartphone or tablet, no matter what app (or system screens) you are using. Note: For Android 5.0 (Lollipop) and higher. Whe... Read more.

play.google.com

Anki is spaced repetition software. You can create cards and review them, Anki takes care of the rest. This is an Anki video deck containing each sentence from the movie 小城之春. Each card has one ... Read more.

ankiweb.net

Word Reference offers several good forums for discussing languages and this is the Chinese section. It's perhaps not as active as Chinese Forums and I don't follow this forum regularly, so I don't... Read more.

forum.wordreference.com

This is Carl Fordham's blog about his mission to go from being an advanced native speaker to becoming a professional translator. He shares an awful lot of interesting and directly applicable materi... Read more.

carlgene.com

This is a link to a category of posts on Carl Gene Fordham's blog that are meant to hone your skills as an interpreter. However, even if they are excellent for that purpose, they can be used for mu... Read more.

carlgene.com

This is a basic but fairly comprehensive overview of the phonology of Standard Chinese (or Mandarin, as it might be better known as). This site covers consonants, vowels, syllables, tones, word str... Read more.

en.wikipedia.org

FREE multi-platform app and desktop software. I use it for looking up words, checking characters etymology, stroke order, collocations. The mobile app also has other functions. For me, this is ... Read more.

smarthanzi.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

Forumosa is a major online forum where you can discuss anything regarding Taiwan, including living there, learning Chinese, finding friends, jobs or language exchange partners and much more. There'... Read more.

forumosa.com

Description provided by OptiLingo (I have not yet tried this service myself): "OptiLingo is a hands-free language learning app that prioritizes learning Chinese through speaking rather than typi... Read more.

optilingo.com

This is a very in-depth article about how Pinyin is written, focusing mainly on the letters used, the typeface, arrangement on the page, and so on. It probably contains more about this topic than y... Read more.

thetype.com

This is a research paper detailing a study of the mutual intelligibility of Chinese topolects. Dialects were sorted into groups and then it was experimentally tested how much of words and sentences... Read more.

openaccess.leidenuniv.nl

This is a character-by-character beginner course in Chinese, provided free of charge at the Open Languages Project. It teaches you to read (and listen to) Chinese by explaining and introducing one ... Read more.

oplang.org

Online Chinese flashcards that adapt to your learning, Chinese speaking practice using voice recognition, and a simple, fast Chinese-English dictionary. Read more.

fastchinese.org

This is a review of Perry Link's book about Chinese. This passage sums it up pretty well, and although I haven't read the book (yet), it's high on my list of books to get my hands on: "In writin... Read more.

lareviewofbooks.org