Maintained Relationships on Facebook
We were asked a simple question: is Facebook increasing the size of people’s personal networks? This is a particularly difficult question to answer, so as a first attempt we looked into the types of relationships people do maintain, and the relative size of these groups. The image above presents a high-level overview of our findings: while the average Facebook user communicates with a small subset of their entire friend network, they maintain relationships with a group two times the size of this core. This not only affects each user, but also has systemic effects that may explain why things spread so quickly on Facebook.
