This white paper maps these continually shifting dynamics, drawing on proceedings from meetings of the Academic and Practical Research Working Group of the Global Internet Forum to Counter Terrorism (GIFCT), the work of the Global Network on Extremism and Technology (GNET), and original desk research. In doing so, it identifies key emerging trends and research priorities related to violent extremism, counterterrorism, and the role of the internet in these spaces. The paper is divided into three sections that respectively examine innovations in violent extremism, new developments in extremist outreach and messaging, and new research and priorities as they relate to preventing terrorist use of the internet (PTUI).