Americans believe the civic information ecosystem is collapsing. Trust in journalism has declined in the past generation, and news media now draw polarized audiences. Public confidence in social media as a news and information source has never been strong, and people today say social media firms cannot be trusted to be objective or impartial information curators of political discourse or stewards of their users’ personal data. This adds up to public despair about disinformation and misinformation that impinges on the way expert knowledge is evaluated and deeply affects public life. A reckoning for both the news media and social media is at hand: For journalists, the existential challenge centers on the viability of their underlying business model. For social media firms, “techlash” might force them to change their structures and practices. Under the circumstances, networked individuals will determine the contours of trust in media.