Although it is no longer a primary interest, I remain fascinated in critical questions and approaches to studying social media manipulation. While everyone is now writing about ‘bots’ and ‘trolls’, these concepts are not well understood and the research landscape (especially for social scientists) remains nascent. First, what are bots, really? What do competing definitions of the term amongst different groups of scholars tell us, and what are the ensuing challenges for policy and research? My friend Doug Guilbeault and I published a 2018 article in Policy & Internet in which we the examine some of these questions.