Something about Advertisement on the Social Network

At present, more and more companies begin to make use of the social network to explore the potential customers, what do you think about that?

social network is a amazing thing, connecting strangers from all of the world, such as facebook, linkedin, twitter etc. For myself, I would like to learn more about the world from the internet instead of various kinds of advertisements except for those really help me. 

so, on the advertisements flying social network, we shall make ourselves a clean sunshine and warm wind in Spring, which makes friends all from the world more comfortable and bring them a new world through our words.