This qualitative research study was carried out with two groups of students at a beginner English level; the students were in the fourth semester of psychology at a Colombian university. The overall aim of this action research study was to analyze learners' perceptions of the strategy "Just in Time Teaching" in a web 2.0. The data were collected through students' artifacts, journals, and interviews. Results of this study indicate that students perceived the strategy of "Just in Time Teaching" as a means to engage them in the designed activities; it was manifested by investing time to extend knowledge and promoting participation by reducing the affective filter.