This document summarizes a presentation given at the Royal Netherlands Academy of Arts and Sciences about new sites of knowledge production on networked platforms. The Virtual Knowledge Studio examines how expertise and authority are enacted in user-generated online environments. By studying three specific sites, they aim to understand how pre-existing institutional elements interact with new digital practices and whether this changes how knowledge is produced. Their research focuses on who is considered an expert, what sources are validated, and how knowledge claims are authorized in these new contexts. While some roles and hierarchies are reproduced digitally, they also find innovation and variety in configurations of expertise across different projects.