Books
- Warburton, Nigel (2009) Free Speech: A Very Short Introduction. Oxford University Press
- Kierulf, Anine og Helge R?nning (2009) Freedom of Speech Abridged? Cultural, Legal and Philosophical Challenges. Nordicom
Online resources
- Freedom on the Net. 2018. The Rise of Digital Authoritarianism. (PDF)
- Free Speech Debate
- Sam Levin, Julia Carrie Wong, and Luke Harding. Facebook backs down from 'napalm girl' censorship and reinstates photo. The Guardian, Friday 9 September 2016 18.44 BST
- Ulla Carlsson (ed.), Freedom of Expression and Media in Transition: Studies and Reflections in the Digital Age (G?teborg: Nordicom, 2016)