I'mo not sure at all whether this would work from a technical or practical side but here goes.
Facebook has all those little games that people seem to doing all the time. When I was on it just before one could an IQ test. But there are also others where one actually has to solve some kind of quiz and can then afterwards can send the results to one's contacts and challenge them to beat you (if I'm talking absolute rubbish it's because I have never acutally played any of those games but only occasionally seen other peoples' scores).
My point is that if you guys made a small game like that and it was spread a little abit around Facebook...that would be huge publicity and depending on how you do it, you might arouse the interest of people who don't even know where China is (like if there was a small explanation of the characters so that the people would say: hey, that's not that hard at all).
Just an idea:)
David