This article defines Twitter[TM]; outlines the features, affordances, and common uses; and conceptualizes "tweeting" as a literacy practice, comprising both traditional and new literacies, and impacting both informal and formal learning settings. Also provided is an overview of traditional and new literacies, and insights from a scan of the…

This article shares findings from a year-long study about social practices of high school youth with mobile devices during school time. In particular, this study found that students see their school time as fluidly social and academic. Educators and policy-makers need to carefully consider these social practices when preparing 21st century youth…