This article presents the research carried out on student teachers’ attitudes towards collaboration in ePortfolios at the Ibiza campus of the University of the Balearic Islands. An on-going ePortfolio project was implemented in September 2009 throughout our different Teacher Education programmes. Changes have been introduced to the project design based on initial research findings. Data collection is carried out with the first and the last graduation classes that have worked on the ePortfolio project. This research allows us to observe any changes in student teachers’ attitudes towards collaboration in ePortfolios due to improved scaffolding as the project progresses.