The power of social media to shape public opinion has been the focus of much debate over the past years. One particular challenge has been the rise of so-called hate speech in online media. Policy makers are currently debating whether and how to limit hate speech on social media platforms. In practice, this could be realized by algorithms or by humans. What are the ethical, political, legal, and social implications of regulating hate speech on social media for individuals, society, and social media corporations? What would be a better option for regulation – human or algorithmic censors? Which research questions can you think of in this context?