[quibit]

If you want to actually learn Korean, check out this site. [1] An American knowing no Korean moved to Korea and meticulously documented everything he learned, and this website was the result. It's an incredibly thorough study into Korean.

[1] http://www.howtostudykorean.com/

[ddoolin]

Can confirm this is one of the best text-based sites out for there for learning Korean. On days when I'm really studying, I typically have 4 or 5 tabs open from just this domain alone.

[ilurk]

Anything similar for Japanese or Chinese?

[jzelinskie]

Tae Kim's work is probably the equivalent for Japanese [0]. I think his "complete guide" is still a work in progress, but his grammar guide is pretty much the defacto free resource.

[0]: http://www.guidetojapanese.org/learn/