Tonight I attended a lecture given by Hervé Kabla(promotion 1984 of Ecole Polytechnique). In English, the title of the lecture is just the title of this post.
The main idea of his talk is that nowadays, any company should try to build the Internet to enlarge its influence, to make itself known to others. To communicate your ideas to others, the best way is to write blogs. Building up one’s own website doesn’t require many things, but the profit is enormous. Of course, there are some ready-make websites that we can use, for example, facebook, twitter, linkedin, etc. These are the easiest and the cheapest way to enlarge one’s influence.