“…edu, which is preferred by researchers in the social sciences and especially the humanities Campos-Freire & Rúas-Araújo, 2016;Elsayed, 2015;Jamali et al, 2016;Matthews, 2016;Mikki et al, 2015;Nández & Borrego, 2013;Ortega, 2015;Thelwall & Kousha, 2015;Thelwall & Kousha, 2017;Van Noorden, 2014 Míguez-González et al, 2017;Mikki et al, 2015;Ortega, 2015;Singh, 2016;Tran & Lyon, 2017;Van Noorden, 2014). Use of ResearchGate is notably higher than that of Academia.edu among senior researchers Matthews, 2016;Mikki et al, 2015).The ability to upload and share the full-text of publications is a feature valued by users of ResearchGate and similar academic social networks (Campos-Freire & Rúas-Araújo, 2016;Corvello, Genovese, & Verteramo, 2014;Elsayed, 2015;Laakso et al, 2017;Marra, 2015;Matthews, 2016;Nicholas et al, 2015;Tenopir et al, 2016;Van Noorden, 2014;Wu, Stvilia, & Lee, 2016). This contributes to ResearchGate being a significant source of freely available scholarly content.…”