ZusammenfassungSocial media provides researchers with easy access to rich, real-time data that offers insight into both public opinion and the role of social media in public life. However, to date, good practice in analyzing social media has been led by what is technically possible and commercially viable. This chapter seeks to reverse that trend and is the result of a year-long study ‘Wisdom of the Crowd’ by Ipsos MORI, Demos, the University of Sussex and CASM Consulting to examine the ethical landscape surrounding aggregated social media research. Based on a review of the legal and market research regulatory landscape in the UK and a program of primary research with experts, members of the public and social media users, this chapter provides a series of constructive and practical recommendations on how to improve ethical standards in this field. Drawing on the context of public ethics, the recommendations provide advice to researchers, regulators, and social media organizations on how they can help to restore trust in social media research and better safeguard social media users.