This roundtable explores the global governance of the internet as a new diplomacy terrain. Contributors to a collective book project on this topic bring together in the same conversation their empirical and theoretical findings and the diversity of their disciplinary, geographic and cultural backgrounds, to discuss major contemporary transformations in global world politics, with both internet governance and diplomacy being at the crossroads of globalization and digitization. Participants focusing on internet governance research identify the variety of discourses, visions, strategies and tensions among both State and non State actors who are the stakeholders of this global debate. They analyze institutionalization processes, paying special attention to how power relations and norms of authority are constructed and adapted. They also compare strategies, policies and law making in Europe and the Americas, especially with regards to cybersecurity and human rights, and examine case studies of law and policy diffusion among regions. Then speakers specializing in diplomatic and global studies reflect on the presented findings, to identify whether internet governance raises new and specific challenges compared to other global issues such as environment, health, or world trade, or to which extent we can learn from already existing research and known practices in such fields.