“…Previous literature has also shown that individuals are devoted, engaged, and highly motivated to spend effort and time in contributing content to specific SNS services (Boyd & Heer, 2006;Foregger, 2008;Krause et al, 2014). More recently, a number of studies have evaluated the U&G of specific activities on Facebook, including music listening (Krause et al,4 2014), sharing links (Baek, Holton, Harp, & Yaschur, 2011), participation in groups (Karnik, Oakley, Venkatanathan, Spiliotopoulos, & Nisi, 2013;Park, Kee, & Valenzuela, 2009), and news sharing (Lee & Ma, 2012). Considering the significance of photo sharing activity on Facebook, exploring the specific U&Gs is both timely and relevant.…”