In this paper we present a study where a Wiki platform has been used as a repository for public learning diaries, exercises and for creating a Wiki book about course-related information. The idea is to have a simple environment that could improve peer learning, collaboration and information sharing among the participants. Students could take advantage of the produced and collected information in their learning portfolios and lecturers might use some parts of the information to develop their teaching. The results show that Wiki platform is applicable to even less experienced students, but it requires guidance and effort to motivate the students to provide own content.