This week saw the publication of the report on ‘Online platforms and the Digital Single Market’ by the House of Lords EU Internal Market Sub-Committee. This reports presents the findings of the inquiry that was held from October 2015 till spring 2016, receiving 85 written responses and 20 oral evidence sessions. Included in the written responses were two from Horizon Digital Economy Research, one by Prof. Rodden and one by myself which we partially posted on this blog about in October 2015. The main driver for this inquiry was the publication in May 2015 by the European Commission (EC) of its ‘Digital Single Market Strategy for Europe’ (DSM), which drew attention to the growing role of online platforms as key players in social and economic interactions on the internet, and was followed on 24 September by the launch of an EC consultation ‘A fit for purpose regulatory environment for platforms and intermediaries’. For the purposes of both the EC consultation and the Lords’ inquiry online platforms were considered to ‘represent a broad category of digital businesses that provide a meeting place for two or more different groups of users over the Internet, examples of which include search engines, online marketplaces, the collaborative or sharing economy, and social networks’. What follows is an incomplete summary of the findings in the report, with a focus on the issues related to fundamental rights of platform users (e.g. privacy), the role of algorithms and user consent, which are most closely related to our work at CaSMa.