“…For trade unions, social media have brought new opportunities for innovative ways of mobilising, recruiting and communicating with members and of conducting political campaigns. The growing literature on trade unions’ use of social media has demonstrated that unions are employing a diverse set of social media platforms and that this usage varies across countries and trade unions (Panagiotopoulos, 2012; Rego et al ., 2014; Geelan, 2015; Hodder and Houghton, 2015; Scaramuzzino and Scaramuzzino, 2017; Barnes et al ., 2019; Jansson and Uba, 2019; Pasquier et al ., 2020). Researchers have examined trade unions’ social media use for recruitment (Jansson and Uba, 2019), mobilisation in wage negotiations (Wood and Pasquier, 2018) and industrial conflict (Upchurch and Grassman, 2016), and it has been argued that such varying usage is often related to the resources and leadership of trade unions (Panagiotopoulos and Barnett, 2015).…”