“…In educational context, many scholars recommend using annotation as strategy of critical reading and learning skill that helps students to read expertly and to learn content area topics more deeply (Brown, 2007;Porter-O'Donnell, 2004;Zywica & Gomez, 2008). Recently, several works present online learning environments integrating annotation functionalities to help learners enhancing their personal learning experiences (Y.-C. Chen, Hwang, & Wang, 2012;C.-M. Chen, Chen, Hong, Liao, & Huang, 2012Gao, 2013;Glover, Xu, & Hardaker, 2007;Kalboussi, Mazhoud, Omheni, & Kacem, 2014;Lai, Tsai, & Yu, 2011;Mostefai, Azouaou, & Balla, 2012;Su, Yang, Hwang, & Zhang, 2010;Yueh, Teng, Lin, Wang, & Hu, 2012).…”