http://www.zgyyzx.com/

well this question might be better answered by someone from HongKong, but here's something you can start with: http://cpime.hk/pingjam/ lists 5 different tables including the Yale one http://www.schoin.org/training/index.jsp?type=1 provides exercises with the Yale system http://v.youku.com/v_show/id_XMjQwODQ2NjM2.html a teaching video made by an native speaker