We describe and analyse the action research process carried out by us as teachers in a general didactics course in the University of Malaga (Spain). The course methodology combined lectures to the whole class and small-group work. We were in charge of guiding small-group work. In the small groups, students researched on an educational innovation guided by a teacher from the educative system (primary, secondary, "A"-level). Students used theoretical concepts explained in lectures to analyse educational innovative realities. Students met with the lecturers at Faculty periodically. These lecturers used online tools to guide small group work between meetings. Specifically, students developed a diary using the "ad hoc" tool in Online Campus, based on Moodle. Lecturers read the diaries on a regular basis and offered feedback to the students. Additionally, students and lecturers kept in contact between meetings by email and forums. Finally, students submitted a report of their research and lecturers offered feedback before a final version of the report. We carried out an action research process to explore the fit between the general purposes of the course and our work as lecturers with the small groups of students. Moreover, we studied the interrelationship between the meetings at Faculty and the online communication via diaries, email and forums. (Contains 1 figure and 3 notes.)