Do prefácio: «The World Economic Forum Annual Meeting 2015 in Davos-Klosters included a session entitled, Keeping "Worldwide" in the Web. Participants discussed a number of challenges facing the open global Internet, which has become a key driver of global wealth creation, socio-cultural enrichment and human empowerment in recent decades. Among the top concerns raised was the emerging fragmentation of the Internet along multiple lines due to developments in the technical, governmental and commercial realms. In the months to follow, it became clear that while this fragmentation was of growing concern to many close observers of and participants in the global Internet ecosystem, there was no widespread consensus as to its nature and scope. As such, with the launch of the World Economic Forum’s multi-year Future of the Internet Initiative (FII), Internet fragmentation stood out as one of the priority topics meriting exploration in the context of the FII’s Governance on the Internet project. (...)».