Anyone with dual language skills can contribute. http://incubator.duolingo.com/ http://incubator.duolingo.com/ I assume the problem is finding Mandarin / Englis

Anyone with dual language skills can contribute. http://incubator.duolingo.com/ http://incubator.duolingo.com/ I assume the problem is finding Mandarin / English speakers who are willing to spend the time on the course.