Some people still think "trolling" refers to harmless fun. If we want to reduce abusive online behaviour, let's start by getting our definitions right.
It could seem attractive to try to teach computers to detect harassment, threats and abusive language. But it's much more difficult than it might appear.
Facebook has released the first batch of data about how many abusive or violent posts it has removed.
While the occurrence of sexist harassment online is well documented, we less often consider what might be driving this behaviour.
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On Q&A, panellist Faustina Agolley questioned whether there were laws protecting against revenge porn in Australia. As it turns out, it all depends on where you live.
Research shows that parents and the police are often unaware of the majority of cases of online sexual abuse.
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The issues of accessibility, communication and connection are especially relevant when it comes to understanding why so many people vent their spleen on social media.