Campbell, H. 2017. ?Surveying Theoretical Approaches Within Digital Religion Studies?. New Media And Society 19 (1). New Media And Society: 15-24. http://journals.sagepub.com/doi/abs/10.1177/1461444816649912.

Campbell, H. 2015. Digital Judaism: Jewish Negotiations With Digital Media And Culture. New York: Routledge. https://books.google.com/books?id=IKYGCAAAQBAJ&printsec=frontcover&dq=978-0415736244&hl=en&sa=X&ved=0ahUKEwj88ouMqMTbAhXjt1kKHf-7CykQ6AEILjAB#v=onepage&q&f=false.

Campbell, H. 2017. ?Religious Communication And Technology?. The Annals Of The Ica 41 (3-4). The Annals Of The Ica. https://www.tandfonline.com/doi/abs/10.1080/23808985.2017.1374200.

Campbell, H, and B  Altenhofen. 2015. ?Methodological Challenges, Innovations And Growing Pains In Digital Religion Research?. In Digital Methodologies In The Sociology Of Religion, 1-12. Digital Methodologies In The Sociology Of Religion. London: Bloomsbury Publishing. https://www.bloomsbury.com/uk/digital-methodologies-in-the-sociology-of-religion-9781472571182/.

Campbell, H. 2018. Religion And The Internet . Mapping The Rise Of The Study Of Religious Practice Online. Vol. 1. Mapping The Rise Of The Study Of Religious Practice Online. London: Routledge. https://www.crcpress.com/Religion-and-the-Internet/Campbell/p/book/9781138093669.

Campbell, H, and A  Virtullo. 2016. ?Accessing Changes In The Study Of Religious Communities In Digital Religion Studies?. Church, Communication & Culture 1 (1). Church, Communication & Culture: 73-89. https://www.tandfonline.com/doi/full/10.1080/23753234.2016.1181301.