Tomayess Issa is a Senior Lecturer at the School of Information Systems at Curtin University, Australia. She joined the School of Information Systems – Curtin University in 2001. She received her Ph.D. from the School of Information Systems, Curtin University in 2008. Her PhD research was mainly about Web development and Human Factors. Tomayess has vast experience in Australian tertiary education, teaching in Information Systems area. Tomayess published several journal and conference papers in her research interest, and she is a member of an international conference program committee. Currently, she conducts research locally and globally in information systems, Usability and Human-Computer Interaction, Social Network (including web 2.0 and web 3.0), Sustainability and Green IT, Cloud Computing, Networking and Operating systems. Pedro Isaías is an associate professor at the Universidade Aberta (Portuguese Open University) in Lisbon, Portugal, responsible for several courses and director of the master degree program in Electronic Commerce and Internet since its start in 2003. He holds a PhD in Information Management (in the speciality of information and decision systems) from the New University of Lisbon. Author of several books, book chapters, papers and research reports, all in the information systems area, he has headed several conferences and workshops within the mentioned area. He has also been responsible for the scientific coordination of several EU funded research projects. He is also member of the editorial board of several journals and program committee member of several conferences and workshops. At the moment he conducts research activity related to Information Systems in general, E-Learning, E-Commerce and WWW related areas.