P J Rey (Maryland): Alienation, Exploitation, and Social Media. Kirsty Young (UTS): Social Ties, Social Networks and the Facebook Experience. Rikard Harr (Umea), Mikael Wiberg (Uppsala), and Steve Whittaker (UC-Santa Cruz): Understanding Interaction Search Behavior in Professional Social Networks. Caren Myers Morrison (Georgia State): Passwords, Profiles, and the Privilege Against Self-Incrimination: Facebook and the Fifth Amendment. From the Graduate Journal of Social Science, a special issue on Methodological Approaches to the Study of Virtual Environments and Online Social Networks. For LinkedIn founder Reid Hoffman, relationships rule the world. Social media and us: Michael Albert on what's wrong with Facebook and Twitter. David Carr on hashtag activism and its limits: Online movements are probably not as effective as real world engagement, but occasionally they are powerful beyond the computer. From Details, a look at the most important social-media events in history. “Social-Media Blasphemy”: An application that allows Facebook users to "enemy" people is meant to make us think critically about social media.