This is the post: Resources for learning Mandarin Chinese (and the relevant meta post is here: Resources for learning Mandarin Chinese: should we have it at all?)
Going through the links one by one, I encountered many broken links. The following links, I'm not 100% sure they're broken---sometimes accessing webpages from China can be problematic [e.g. any Google site]. (I'm not using a firewall, VPN, etc.).
Potential broken links:
Chinese Tutor Flashcards www.fastchinese.org/flashcards
Global Language Online Support System (GLOSS) http://gloss.dliflc.edu/
慢速中文 Slow Chinese http://www.slow-chinese.com/
ChineseMe https://www.chinese-me.com/ Mandarin Chinese - Language of the Middle Kingdom
Colloquial Chinese links:
http://www.routledge.com/books/details/9780415328180/ [this one redirects]
Chinese Tutor Dictionary http://www.fastchinese.org/dictionary
Computer Term Translations (電腦名詞譯名) http://www.iicm.org.tw/term/
Question: Could you check these links please?
It seems also some users have added "referral codes" to links.
Some of the introductions read like advertisements.