It's no doubt that Alibaba.com is a very sucessful synthesis E-business website. But I wonder why there isn't any famous professional medical & medicine E-business website? You know, medical & medicine is such an important area that no one will doubt E-business is a very good method(mode) to develop it. How is the situation about the various countries to practise medical & medicine E-business? Is there any outstanding E-Med-Business websites?

Since I'm major in Medicine, I'm paying great interest in it.