Current computer-assisted language learning (CALL) research has identified various potentials of technology for language learning. To realize and maximize these potentials, engaging students in self-initiated use of technology for language learning is a must. This study investigated Hong Kong university students' use of technology outside the classroom to self-regulate their language learning. It showed that these students were actively engaged in the use of technology, but there were variations both among the students and in the aspects of language learning that they opted to support using technology. More importantly, this study unraveled the factors that influenced their selective use of technology in language learning. (Contains 1 note and 1 table.)