This document summarizes key points from three talks/writings on networked groups and social networks. The first discusses how social media has altered social interaction and information sharing. It notes properties like persistence, searchability and invisible audiences. The second discusses how technology now allows organizing without formal organizations through sharing, cooperation, collaboration and collective action. The third discusses how technology allows self-synchronizing groups to form without boundaries and how cognitive surplus can now be used for participation and creating good things. Questions posed ask about changes in public/private spaces for youth, differences between social networks and social networking sites, examples of collective action becoming more normal, if technology is now boring and the future, and the relationship between collaborative action and social change.