The aim of this paper is to present a collaborative environment developed within the framework of the SLOOP project, co-financed by the European Commission under the Leonardo Da Vinci programme. The environment is called FreeLOms and allows teachers to share and reuse Learning Objects, including cooperative and repository functionalities. In fact, the production and sharing of digital contents according to the Learning Object approach at school is limited to a small number of teachers, and so a key opportunity to reuse them is lost. The FreeLOms system, described in this paper, includes features for LO Metadata editing, versioning and differencing at metadata and content levels and managing LO in SCORM vision.