Who’s your friend?
In class we have been looking into network graphs and how they relate to people in social media. A facebook engineer took data of around 500 million people using facebook and made a worldwide social media graph in 2010. We can only assume that in five years the amount of people on social media and the amount of connections have grown and spread to cover a lot more of the world. The graph is a huge display of how many connections go through the world and the sixth degree of separation. hundreds of millions of connections that go across oceans and continents, highlights that you know someone that knows someone that knows another person, and so on to match one person with anyone in the world within six people.
The article also shows the concentration of people in certain areas. Larger cities tend to have a lot of inside connections as well as the most connections going outward. This is mainly caused by the large amount of people living in these cities however people are also more likely to pass through and be introduced to those areas. These connections cause a beautifully lightened picture of the world and its social media connections 
Sources:
https://www.facebook.com/notes/facebook-engineering/visualizing-friendships/469716398919