His research addresses student language use and achievement in collaborative CALL environments and the CALL preparation of teachers. He is currently Action Research Column editor for the journal Language Learning & Technology. He has published widely, including co-authoring the books TESOL Technology Standards (TESOL, 2011) and Technology across writing contexts and tasks (CALICO, 2012). He has taught CALL programs in the USA and Burma, Canada, China, Croatia, Czech Republic, Egypt, Greece, Hong Kong, Hungary, Japan, Jordan, Kazakhstan, Korea, Mexico, Montenegro, Saudi Arabia, Serbia & Turkey.