My interests include cultural-historical and usage-based approaches to language development, language use and learning in social media and online gaming environments, and research that examines human activity at the nexus of technologies-cultures. I'm currently working on a variety of projects that examine technology-mediated language learning occurring within and outside of formal educational settings, indigenous language maintenance and revitalization, and exploring the conceptual and social-material consequences of divergent theories of second language development. In a prior incarnation, I taught Hindi and Urdu (at UC Berkeley and in Pakistan). Over the years I've presented talks, plenaries, workshops and seminars on a variety of language-related topics including new media communication and information technologies, gaming and game-based learning, intercultural communication, Vygotskian and cultural-historical activity theory, corpus linguistics, second language development and pedagogy, and ancestral/indigenous language revitalization.