Hi
@Tegan Cole,
Yes Australia's defamation laws can extend to social media. This was recently confirmed in the NSW District Court case of
Mickle v Farley in which a teacher was awarded $105,000 in damages for defamatory tweets by a student.
In order to bring an action for defamation on social media, you will need to prove the same elements as for a traditional defamation action, which are:
1. that there was a comment or photograph that was published;
2. it identified you
3. the comment or photo contained defamatory imputations (ie. things that could potentially harm your reputation); and
4. the defendant is unable to rely on any valid defence (such as truth or fair comment etc).
Your first steps should be to contact Facebook or the administrator of the relevant site and ask them to take the defamatory posts down. You may also be able to bring a law suit for damages. You should seek legal advice if you wish to proceed with such a course.