"The big change now is in social density. Everyone is online, and everyone they know is online. The need to find an apartment and the interest in going out with people your own age means that the anchor of social life is now more geographic that it was even five years ago. When everybody has the internet, you don't have to choose between geography and affinity, you can actually choose to associate with people in your geographic area who also share your affinity."

–Clay Shirky, author of Here Comes Everybody, The Power of Organizing Without Organizations