“…Since 2005, Facebook has remained the most popular social media site in the United States, currently boasting over double the share of US adults (68%) compared to its closest competitors, Instagram (28%; which is owned by Facebook), Pinterest (26%), LinkedIn (25%), and Twitter (21%; Pew Research Center, 2017). Although the majority of social media research has focused on Facebook as an exemplar for social media use (Stoycheff, Liu, Wibowo, & Nanni, 2017), studies have begun comparing behaviors across sites, particularly between Facebook and Twitter (e.g., Binns, 2014;Davenport, Bergman, Bergman, & Fearrington, 2014;Errasti, Amigo, & Villadangos, 2017;Hughes, Rowe, Batey, & Lee, 2012;Panek, Nardis, & Konrath, 2013;Whitty, Doodson, Creese, & Hodges, 2017). However, few cross-site comparisons have included Instagram (e.g., Kim, Seely, & Jung, 2017;Phua, Jin, & Kim, 2017;Pittman & Reich, 2016;Waterloo, Baumgartner, Peter, & Valkenburg, 2017), despite its rising popularity (Instagram & TechCrunch, n.d.).…”