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

Douban is one of the most popular online Chinese communities and forums. You can read a wide variety of material - on almost any topic imaginable - from native speakers. It's a wonderful source... Read more.

douban.com

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

A Chinese discussion forum / social news site with discussions about almost everything. Good for reading about your particular interests or perhaps even participating in the discussions yourself. Read more.

bbs.hupu.com

This is a story about looking Chinese but not knowing how to speak Chinese. It's an eye-opener for people who don't look Chinese and study Chinese, but it might also be painfully familiar for stude... Read more.

youtube.com

This is a presentation by Thomas S. Mullaney about Chinese typewriters through history. In the digital age, typing in Chinese is easier than it has ever been, but how did the Chinese typewrite evol... Read more.

youtu.be

Subtitles offer a way to get endless annotated Chinese audio for free. You use linked-up learning! This article on Chinese Boost includes some resources for people who are looking for subtitles in ... Read more.

chineseboost.com