The Australian Jewish News reports on section 18C of the Racial Discrimination Act (RDA), which community leaders say helped them to persuade Facebook this week to close down a page run by the Australian branch of the far-right Greek political party Golden Dawn. They report how The Online Hate Prevention Institute (OHPI) presented the social networking site and the Australian Human Rights Commission (AHRC) with a briefing on Golden Dawn in Australia and on the Australia First Party, and talk to our CEO Andre Oboler about social media use and extremism.