Based on the observation that most of my students use computer-based technology (CBT) in their daily activities, I used computer assisted language learning (CALL) as an intervention in this action research study, carried out at a university in Bangladesh. This CALL curriculum was focused on Web 2.0 and its applications for educational purposes. The main objective of the study was to understand the effects of a CALL curriculum on the participants' learning motivation. To meet this objective, I designed CALL and non-CALL lessons to teach English to a class of first-year undergraduate students. Throughout this course, I observed students' behaviours and attitudes and collected data from different artifacts and student responses. Comparison between student behaviours during the CALL and non-CALL lessons and analysis of the triangulated data indicated that the use of Web 2.0 in the CALL curriculum contributed to an increase in students' motivation as well as their learning of the target language. (Contains 1 table and 2 images.)