Social Networking

There are days that I wonder to myself, what is the purpose of social networks? Why does it seem like everyone is a part of one? And why should I care? Do I really have to put my face in a book, make bird noises, put all of my pictures in a bucket, clumsily fall down an incline, and so on? I was seeking answers, and I found one answer back in 2011 at the end of the school year.