"Graded Watching makes watching TV series more approachable for Chinese learners by offering a list of Chinese TV shows on Netflix and Youtube sorted by difficulty, along with a vocabulary list for... Read more.

jiong3.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

Foreigncy provides daily digital flashcards, with audio, that prepare a user to read a foreign policy or economics from a regional source. The site also provide users with an English language summa... Read more.

foreigncy.org

This is a newsletter for advanced students run by Andrew Methven. The free version includes a weekly newsletter with highlighted readings and some interesting vocabulary highlighted and discussed. ... Read more.

newsletter.slowchinese.net

Have you ever wondered how names from other languages are transliterated into Chinese? There is actually a reference table where you can see how different sounds are translated into Chinese charact... Read more.

en.wikipedia.org