Eshet-Alkalai, Y., & Chajut, E. (2009). Changes Over Time in Digital Literacy. Cyberpsychology & Behavior, 12(6), 713-715. doi:10.1089/cpb.2008.0264

two major patterns of change over time: (a) closing the gap between younger and older participants in the tasks that emphasize profi- ciency and technical control and (b) widening the gap between younger and older participants in tasks that emphasize creativity and critical thinking. Based on the comparison with the matched control groups, we suggest that experience with technology, and not age, accounts for the observed lifelong changes in digital literacy skills

Eshet-Alkalai, Y., & Soffer, O. (2012). Guest Editorial – Navigating in the Digital Era: Digital Literacy: Socio-Cultural and Educational Aspects. Journal Of Educational Technology & Society, 15(2), 1.

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a wide range of technological, cognitive and social competences—collectively termed “Digital Literacy.” Users thus must become “digitally literate” in order to cope effectively with the complex sociological, cognitive and pedagogical challenges these technologies pose. These skills include, for example, the ability to operate computers and navigate the net effectively, to cope with large volumes of information, to evaluate the reliability of information, and to critically assess what seem to be natural (and not ideologically biased) technological tools. In a different way from the spirit of modern print, learners construct and consume knowledge in non-linear environments. They need to learn, collaborate and solve problems effectively in virtual (non face-to-face) learning environments, and to communicate effectively in technology-mediated social participation environments.

It is important to note: digital literacy, then, is not limited simply to computer and Internet operation and orientation. It also relates to a variety of epistemological and ethical issues arise due to the unique characteristics of digital technologies and that are often overlapped with trends related to the post-modern and post-structural era. These include questions regarding the authority of knowledge, intellectual property and ownership, copyright, authenticity and plagiarism. Furthermore, issues such as self-representation, virtual group dynamics, and on-line addiction also arise.