Ulugbek Nurmukhamedov teaches in the MA TESOL program at Northeastern Illinois University (Chicago, IL). His research interests include second language vocabulary and computer-assisted vocabulary learning. He has published in these areas in journals including TESOL Journal, ELT Journal, Language Teaching, and International Journal of Lexicography.

Randall Sadler is the Director of TESL and ESL at the University of Illinois. He teaches courses on CALL and teaching L2 reading and writing. His books include Virtual Worlds, Telecollaboration, and Language Learning (2012, Peter Lang), Handbook of Informal Language Learning (2020, Wiley Blackwell), and New Ways in Teaching with Games (2020, TESOL).