there are 2 million Koreans in China - Wikipedia out there. So I was wondering, for people who speak Korean or Chinese, are there traces of them online? E.g. are there Korean language forums, business websites, classifieds sites and the like associated with this community?
Further, are there traces of interaction between them and the people from South Korea on forums etc? Is there wage arbitrage driven provision of remote services over the web between these two communities speaking the same language, like we can see between English-speaking West and India?