Ever given any thought to a popup Korean site? It is one of the easier Asian languages alphabetically with hangul, and it's borrowed use of Chinese characters would be interesting for Chinese learners (although they use the complex form). The grammar is a bit more challenging with all the honorifics but it is a very interesting language. I studied it many years ago when I was stationed in korea in the army and would love to brush up on it as I travel there for business. The popup model would be a warm welcome by me :-)