The article discusses various cases in Australia where internet intermediaries such as Google and Yahoo have been held liable for defamatory content. The article also highlights the circumstances under which internet intermediaries can be held liable for legal violations. The cases discussed include Duffy v Google Inc, Clarke v Nationwide News Pty Ltd, Silberberg v Builders Collective of Australia Inc, Trkulja v Yahoo! Inc LLC, Rana v Google Australia Pty Ltd, and Visscher v Maritime Union of Australia. The article provides insights into the liability of internet intermediaries in defamation cases in Australia.