What is public sphere? This concept can be seen as simply the non-private space in the general sense. But it is in fact a very contentious notion as most social scientists would testify. Its meaning changes according to time, place, and society. Today the term has gained new meaning and it is to being transformed into a radically new form that is politically significant. My paper examines the transposition process of the public sphere. I will begin with an Arendtian perspective and discuss the views of Habermas, Sennet and Sassen respectively. Besides I will address to questions of democracy in the context of the public sphere in Turkey.
I argue that the cyberspace is replacing conventional public sphere with the advent of Twitter and Facebook. I will draw attention to the power of social networks more as new efficient spheres in relation to the Tahrir Square democratic revolution in Egypt.