Teens with larger friend networks also tend to be more active when it comes to managing and maintaining their online personas. They are more likely than those with smaller networks to block other users, to delete people from their friend network entirely, to untag photos of themselves, and to delete comments others have made on their profile. They are also substantially more likely to automatically include their location in updates and share inside jokes or coded messages with others.
Interestingly, some of these reputation management activities exhibit spikes at different points in the network size spectrum. For example, blocking people, deleting comments, and automatically including one’s location sees a dramatic increase at around 600 Facebook friends. The act of sharing inside jokes or coded messages becomes more common among those with more than 150 friends, and untagging photos follows a similar pattern. Read the rest at Pew Internet and American Life Project.