Seven pedagogical principles guided the development of a collaborative virtual environment, within an international project called ITCOLE. The progressive inquiry model as a theoretical framework had a large impact on describing these principles. Furthermore, this article describes the two web-based software systems - Synergeia and FLE3 - that were developed in the project. Teachers evaluated this software in the light of two perspectives: user friendliness (ease of use) and user satisfaction (especially the pedagogical usability). It is concluded that the participants find the software easy to use. The user satisfaction ranges between good and average. Details about the different types of evaluation are reported in the paper.