Twenty years of archived discussion among unusually experienced Mandarin learners.
Details
A long-running forum where advanced learners, translators and teachers review resources, discuss study methods and run reading groups — the signal-to-noise ratio is far better than social media. Searching the archive answers most 'which textbook / how do I get past HSK 4' questions immediately. Traffic is much lower than it was, so expect slow replies to new threads and treat it primarily as an archive.