Came across this site today http://chinese.stackexchange.com/, “a collaboratively edited question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Chinese language” and thought it maybe interesting for others, too.
Thanks for sharing, looks like a potentially big help for usage. My problem with Mandarin is that I get all the major grammar rules but still fail to write a coherent and comprehensible Chinese text. The site could have a section ‘mistakes corrected’ listing all the things learners got wrong to let others learn from… Or anyone thinking about creating such a website? I already have a vague idea…