This volume contributes to the development and advancement of TBLT as a research domain by investigating the intersection between tasks and technology from a variety of theoretical perspectives (e.g., educational, cognitive, sociocultural) and by gathering empirical findings on the design and implementation of diverse tasks for writing, interaction, and assessment with the mediation of technological tools such as wikis, blogs, CMC, Fanfiction sites, and virtual and synthetic environments. The innovative blend of tasks and technology in technology-mediated communication is guided by task-based language teaching and learning principles, and the contexts of study span adult college-level education settings in the United States, Mexico, the Netherlands, and Malaysia. The volume opens up a new framework that the authors call “technology-mediated TBLT,” in which tasks and technology are genuinely and productively integrated in the curriculum according to learning-by-doing philosophies of language pedagogy, new language education needs, and digital technology realities.