This site contains a huge number of lessons, complete with texts, vocabulary, audio, exercises and much more. And it's all free. Note that if you want to get the intermediate and advanced material,... Read more.

collections.uiowa.edu

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

This is a VERY comprehensive list of computer related terms in Chinese which works well for translation or detailed look-ups rather than studying. The list is mainly in traditional characters (the ... Read more.

iicm.org.tw

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

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 blog post contains both a list of most of the elements in the periodic table in both Chinese and English, but more importantly, it contains a discussion about the characters used to represent ... Read more.

languagelog.ldc.upenn.edu

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