abstract: In the real world outside of schools, contemporary students are routinely reading, writing, communicating, acting, and learning internationally, translingually, and multimodally, thanks to the prevalence of digital online communication; this has taken place across students’ racial, ethnic, and linguistic identities and national affiliations. Today, the global online contexts are considered as one of essential literacy environments, and the globally networked online contexts might become a main stage of future literacy practices. In this sense, this study develops new three theories about literacies studies from the perspective of the New Literacy Studies in an increasingly digitalized and globalized contemporary world. To achieve this, first, I introduced the features of a global online affinity space as a new concept. Second, I developed the theoretical claim of “complexified diversity.” Finally, I developed the theoretical concept of “Border-Crossing Discourses” on the basis of Gee’s (1990/2015) seminal idea of capital “D” Discourses. I expanded the concept of capital “D” Discourses, looking across borders at a variety of languages, nations, and broader cultures under the global view. The concept of Border-Crossing Discourses was established on the basis of the new concepts that I put forth previously of global online affinity spaces and complexified diversity. As an example of possible supplementary empirical studies, I conducted a small piece of discourse analysis. I observed and examined literacy practices in two global online affinity spaces. They are sites devoted to K-pop fanfiction sharing (hereafter, Asianfanfics) and to Japanese anime (hereafter, Crunchyroll). In particular, I explored the aspects of multimodal and translingual practices in these spaces. Both theoretical and empirical future research will contribute to the elaboration of these theories. / Dissertation/Thesis / Doctoral Dissertation Learning, Literacies and Technologies 2018