Gatewatching and News Curation: Journalism, Social Media, and the Public Sphere offers a comprehensive analysis of the evolving news media landscape, shaped by an increasingly interconnected and social environment. In this context, both professional journalists and non-professional news users take on the roles of gatewatchers and news curators. These roles are often embraced with enthusiasm, while a significant portion of their daily activities takes place in spaces operated by major social media platforms. The platform functions, which are beyond their control, influence how they post, find, access, share, and curate news, rumors, analyses, and opinions. The book highlights the dynamics of news behavior in social media and the associated challenges for professional journalism, which must adapt to these changes.