Listen to native speakers, mimic the audio while recording, receive instant feedback on spoken phases. Then submit your recording to be evaluated by real native teachers. Read more.

waichinese.com

This article describes the basics of way to teach tones that is different from the traditional way mainly in that the third tone is no longer described as a falling-rising tone (since that is rarel... Read more.

sinosplice.com

Tatoeba offers sentences in many languages (you can choose yourself which languages to search for). This is excellent if you want to find your own example sentences for your Chinese vocabulary or i... Read more.

tatoeba.org

Glossika offers an audio method that consists of hundreds of bilingual sentences read by native speakers. They are selected to be natural-sounding and very common sentences and structured to build ... Read more.

glossika.com

Recommended and introduced by Trevor [here](http://www.hackingchinese.com/extensive-listening-challenge-october-2014-wrapping-up/#comment-646686). Each book (one for each level of the new HSK ex... Read more.

amazon.com

This is the best overview of spaced repetition research I have seen online or offline. It's thorough, well-argued and probably covers more than you were looking for. It's not specifically about Chi... Read more.

gwern.net

iTalki isn't specifically designed for learning Chinese, but it's still one of the most convenient and probably also one of the cheapest way to find people to practice Chinese with. Sure, you can f... Read more.

italki.com

Pro version gives you: ★ Chinese handwriting recognition built in* ★ Mandarin audio - over 2,000 audio files of a real native Chinese speaker ★ Homescreen Widgets - flip through your favorite wo... Read more.

play.google.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

TutorMandarin is an online Chinese tutoring software and service. Students take 1-on-1 classes with professional Mandarin tutors on PC, Android, or iOS. Full courses from Beginner to Advanced, Spok... Read more.

tutormandarin.net

HiNative is a Q&A site where you can ask people all over the world about culture, language, anything. We support over 100 languages. Read more.

hinative.com

Basic HSK grammar from beginner to advanced level. The best part is that in each lesson end, there is a quiz to test if you have really mastered the grammar. Read more.

hskcourse.com

This is a simple input tool where you can use your keyboard or mouse to compose text in IPA. If you only need a single word, copy/pasting is probably good enough, but this is handy if you want more... Read more.

ipa.typeit.org

This is a unique resource that shows how most common speech sounds are actually produced. Most other resources use animations and diagrams, but this is the frist I see which show actual MRI scans. ... Read more.

seeingspeech.ac.uk

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

Floomli is a free platform for exchange languages during video call, voice call or text conversation. By joining Floomli you become a part of a global language practicing network . The main goal of... Read more.

floomli.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