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

An online corpus of Chinese language. Size: 477 million characters (1.06 GB). Interface language: Chinese only. Read more.

goo.gl

Resource suggested and introduced by Carlton Gay ([here] (http://www.hackingchinese.com/extensive-listening-challenge-october-2014-wrapping-up/#comment-661842): This is a free simple site with a... Read more.

singchinesesongs.com

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

chineseetymology.org

Pinyinput is an input method editor (IME) for Windows that makes it easy to type Hanyu Pinyin with tone marks, like so: Hànyǔ Pīnyīn. Read more.

pinyinput.net

You can input Charakters and this tool will output statistics about the words and characters, and can suggest high frequency words and characters that should be learned. It also analyses the HSK le... Read more.

hskhsk.pythonanywhere.com

The official introduction sums it up pretty well: It's a place where you can listen to Chinese music and learn Chinese with famous Chinese songs in Mandarin (simplified characters). As well, le... Read more.

singchinesesongs.com

A program to split any Chinese text into individual words, summarizing information about each unique word. The information is presented in the form of a tab-delimited matrix, so that the results ca... Read more.

zhtoolkit.com

This is a collection of several Chinese corpora that can be quite useful if you're looking for detailed information about collocations and the like. Simply entering a word will give you sentences, ... Read more.

corpus.leeds.ac.uk

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 game helps you learn tones. You will see the lyrics of Chinese songs approaching you and you're supposed to select which of them actually belong to the lyrics you're hearing. It's a reasonably... Read more.

fourtones.com

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