The Future of Facebook

In a world where social networks are truly beginning to run the world as we know it, at least as far as communication is concerned, what is the world going to be doing in five years. Facebook as I learned today in my Ad Literacy class has grown to over 500,000,000 registered users according to one student. With numbers like that, it puts facebook as about the 3rd largest country in terms of population if I'm not mistaken. So in a world were people can video chat on their phones, and where advertisements are able to be seen by 500,000,000 people, how is facebook going to change? We now have 3-D televisions and movies, interactive computer screens and websites, imagine if in three years instead of chatting with someone in a little white box, we could produce a three dimensional fully functional image of the person so it is literally like they are in the room talking with us, while still being at home; you could literally almost be in four places at once.