Vocabulary lists for most major textbooks. Downloading the lists requires free signup to Skritter. Read more.

skritter.com

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

A blog of beginner, intermediate, and advanced Chinese reading materials with full English translations. Read more.

chinesereadingpractice.com

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

This site is best described as a Chinese version of Quora, so in other words a site where people ask and answer questions (and discuss other people's questions and answers). Read more.

zhihu.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 site collects almost a thousand textbooks used in Chinese schools, ranging from grade 1 up to senior high school. Subjects cover Chinese, mathematics, English, physics, chemistry, biology, his... Read more.

dzkbw.com

Tianya Club is a very popular online Chinese forum (according to Wikipedia, it's the twelfth most visited website in China). The site is massive, including not only a forum, but also blogs, photo s... Read more.

bbs.tianya.cn

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

cantonese.sheik.co.uk

Save time doing dictionary lookups! Simply point your camera at some Chinese text to get all the English definitions. And everything works offline. Within just a couple of seconds of launching t... Read more.

play.google.com

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 subreddit is, as the name implies, about reading books in Chinese. A book is chosen each week by the members and is then read and discussed. Usually, there are links to various versions of the... Read more.

reddit.com