Social media represent a set of communication practices that can typically be described as ‘many-to-many.’ In contrast to broadcast media, consumers are typically also producers. In contrast to in-person communication, audiences are often ambiguous or underspecified. These practices have ushered in new forms of political organization and new ways to consider social identity as curated. They have also led to new insights about social networks broadly. Some researchers suggest social media lead to increases in social capital and well-being, while others argue this is at the expense of privacy.