This website contains a wealth of information about characters and romanisation. It's maintained by Mark Swofford. There are many articles about Pinyin as well as a number of useful tools, which I ... Read more.

pinyin.info

I first used this dictionary during my first semester of Chinese and I have kept using it ever since. It has pretty good information about character etymology and provides more accurate information... Read more.

zhongwen.com

Outlier Linguistics hosts an excellent blog with a large number of insightful articles into Chinese characters. Some of them are directly useful because they talk about learning characters, others ... Read more.

outlier-linguistics.com

This project aims to create a complete set of high quality and free illustrations to clearly show the stroke orders of Han characters (hanzi, kanji, kana, hantu, and hanja). Read more.

commons.wikimedia.org

This website contains a lot of short and easy-to-access articles about science and technology related articles (although they are usually very lightweight, you don't need to actually be a professio... Read more.

jandan.net

This is the official Chinese version of the popular news website TechCrunch, focusing on information technology and related companies, start-ups and much more. Read more.

techcrunch.cn

This is probably one of the best resources for upper-intermediate or advanced learners of Chinese who want to learn something using their Chinese. Khan Academy has hundreds of videos about differen... Read more.

youtube.com

This website offers a large number of previous HSK and YCT Chinese proficiency tests, sorted by year and level. This is excellent for test preparation and/or benchmarking. Read more.

chinesetest.cn

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

This site offers a wide range of short articles on science and technology related articles. They also offer MOOCs, but I haven't actually tried them yet. This is from their official about page: ... Read more.

guokr.com

Engadget is a multilingual technology blog network with daily coverage of gadgets and consumer electronics. This is the Chinese version, so anyone who is interested in tech will find lots of readin... Read more.

chinese.engadget.com

This site is provided by 科普中国, and as the name implies, it answers why questions about everything from aliens to economics. The articles are of varying length and while there aren’t literally 10,00... Read more.

10why.net

This is an overview of how to learn Chinese characters, including understanding how they work, how to learn to read and write them, as well as how to remember the characters you have learnt. Tools ... Read more.

hackingchinese.com

Stroke order for Chinese characters is something most beginners struggle with to begin with, but it's also a problem that quickly fades away over time. This article collects all the resources you n... Read more.

hackingchinese.com