The interactive construction of authority and expertise in online platforms around a topic (e.g., history, standard language, etc.) has challenged the way knowledge has been traditionally channeled through official institutions. The Internet has become a platform for recurrent consultation in relation to checking norms and rules or seeking advice or information through electronically mediated communication in which quasi-anonymous participants discuss, question, define, and re-construct knowledge. This chapter examines the competition between official institutions and these noninstitutional spaces for authority and legitimation in the creation of knowledge in a particular area or discipline. The chapter will explore the shift in the creation of knowledge, historically monopolized by institutional and official organizations and now facing significant challenges from online discussions. Further, it explores how institutional trust has been challenged and eroded due to the influence of digital communication and discourse. Discussions and debates such as these that have, paradoxically, fostered a more democratic exchange of information through participatory culture, are threatening the status, for instance, of democracy in countries with a long-stablished democratic tradition (US Capitol assault on January 6, 2021). This competition between official and unofficial discourses stands as a struggle for power and legitimacy in our current society.