David Vaile, Stream lead for Data Protection and Surveillance, Allens Hub for Technology, Law & Innovation, talks about the effectiveness of policing global social media companies.
Originally designed to display service times or bible quotations, church signs are becoming a site of political commentary, tackling everything from pill testing to refugee rights.
Some Australian Facebook users are more worried about over-sharing by friends than the privacy and security of their personal information.
Bridianne O'Dea is at the forefront of research into how technology can harness the power of social media to detect mental illness and deliver appropriate health care.
Like Australia, China traditionally commemorates those who served in war in April each year, and increasingly they do it via social media, writes Tom Sear.
When disaster strikes, online communities are lending a hand in sharing information and offering financial support.
Social media platforms such as Facebook, Twitter and Snapchat have transformed the way we understand and experience crime and victimisation, write Alyce McGovern and Sanja Milivojevic.
Social media has been flagged as a platform for the early detection and tracking of epidemics. But can it really replace traditional surveillance methods, ask C Raina MacIntyre and Sheng-Lun (Jason) Yan.
Is sharing a selfie on Facebook an effective way to stop someone who is seriously considering taking their life? The truth is, we really don't know writes Helen Christensen.
Social media can be an effective tool in mobilising people for social change, as demonstrated by the Bersih movement in Malaysia, writes Carmen Leong.