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

Wenlin software makes learning Chinese easier and more interesting, for begining students, life-long speakers, and scholars alike. It combines a comprehensive Chinese dictionary, a Unicode text edi... Read more.

wenlin.com

Chinese dictionary for iOS with handwriting, OCR, flashcards, audio, document reader (including support for reading words on web pages and in PDF / EPUB documents), stroke order, and more than 20 a... Read more.

itunes.apple.com

This website contains a wealth of information about characters and romanisation. It's maintained by Mark Swofford. There are many articles about Pinyin as well as a number of useful tools, which I ... Read more.

pinyin.info

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

chineseetymology.org

Chinese dictionary for Android with handwriting, OCR, flashcards, audio, document reader, stroke order, and more than 20 available dictionary databases. Read more.

play.google.com

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

This tool adds inline and pop-up annotations with pronunciation in Pinyin or Zhuyin and English definitions to Chinese text or web pages. It's incredibly useful if you have Chinese text and want to... Read more.

mandarinspot.com

This is a language learning game that features among other languages Mandarin Chinese (at first only Japanese was supported). It aims to teach you about 400 words by having a virtual character walk... Read more.

playinfluent.com

This program adds tone marks on top of characters in Microsoft Word. This is quite useful if you want to produce texts that have tones but not Pinyin, enabling yourself or your students to focus on... Read more.

twighk.github.io

This is a site where you can find theses and dissertations published in Taiwan. It's an excellent source if you want to find research about specific topics and improve your reading ability at the s... Read more.

ndltd.ncl.edu.tw

This website provides a large-scale psycholinguistic norm of 3,314 Traditional Chinese characters along with their naming latencies collected from 140 Chinese speakers. Several variables are gi... Read more.

ball.ling.sinica.edu.tw

ChineseMe is the most integrated Mandarin course, designed for motivated learners who have decided to become fluent. It is an interactive textbook that adapts itself to your interests. The course i... Read more.

chinese-me.com

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