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

Hanping Chinese Dictionary Pro and Hanping Chinese Camera are the two highest rated Android apps on Google's Play Store. The dictionary (both free and paid editions available) gives you the ability... Read more.

play.google.com

Linqapp is the app for language learners. No matter what question you have on your mind - Linqapp connects you with native speakers who assist you on the spot - no matter where you are. It's just l... Read more.

linqapp.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

Finally, Duolingo added a En->ZH course. As Duolingo is the most popular gamification learning app, the learning experience is relatively streamlined and tested. The monetarization aspect leads to ... Read more.

en.duolingo.com

Language Radio is supporting intermediate to advanced language learners with their listening practice through listening to radio stations in the desired target language. You may use our pre-install... Read more.

play.google.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

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 a neat little app that allows you to find language exchange partners easily. There are also some feature to help you manage your language exchanges, such as forcing equal usage of the two l... Read more.

hellotalk.com

This is the traditional Pinyin chart with audio, with the added benefit that you can download it and use it offline. Contains separate mp3 files. Female speaker with clear pronunciation. Edit: Y... Read more.

chinesepod.com

UPDATE 2017: This app is now rolled into our Hanping Dictionary apps (Lite, Pro & Cantonese). Great way for beginners to practice single and double-syllable Chinese words. ★ Ideal for any stu... Read more.

hanpingchinese.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 app, which is available for free both on Android and iOS allows you to access tons of programs and audiobooks for free. Some of them aren't free, but it's clearly written which are, so you don... Read more.

diantai.ifeng.com

CantoDict: an Online Collaborative Chinese (Cantonese) Dictionary. Read more.

cantonese.sheik.co.uk

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

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

From their website: Features: - a game-based and structured curriculum optimized for English-speaking beginners; - compartmentalized contents designed for studying in fragmented times; - an... Read more.

chinese-skill.com