Power of communication

In this post I will treat the various aspects of communication, mainly the power of communication. Today communication is very efficient, thanks to the innovation of the technology, that had changed the way of communicate and had improved the communication between human beings. The ways of communication were the same for many centuries, but they are changed in the XX century, and especially in this last 20 years. The most important innovation is internet, that had revolution our habitudes of communication. Internet offer many services and tools to communicate with people; the most significant of these is probably Facebook, the biggest social network in the world that changed the way of communicate between people of different countries, languages and cultures. Another innovative way of communication is YouTube, where people can upload and watch videos. With videos we can communicate things that we can't communicate writing a text, and I think videos are the main way of communication in the XXI century.