China's Alibaba is preparing for an US IPO and you'd better get up to speed. Nowadays, those who deem themselves "in-the-know" and describe themselves as technology-savy, cannot afford to associate the sound [alibaba] with the classical oriental fairy tale anymore. Now they need to be able to place Alibaba (the group) on its right place and get fluent and familiar with names such as Taobao, T-mall, Yu e'Bao, Alipay... and more. It is becoming urgent.

To our rescue, here comes the WSJ with a very complete and easy-to-digest explanation of what the landing of this major e-commerce giant will mean in the west. Even if you knew all this, the refresher will help. Check out the best map of China's internet scene that we have seen to date.