The article is a reflection on the training requirements for the professionals that the knowledge-based society needs. One of the most important objectives that any university must have in the knowledge-based society is to provide training for competent professionals with sufficient intellectual tools to face up to the uncertainty of information, the knowledge that it has an early expiry date and, therefore, the anxiety that this causes. Furthermore, they must also be capable of defining and creating their own work tools with which they can give form and effectiveness to this changeable and changing knowledge. In addition, the European Higher Education Area prioritises the transferable skill of "collaborative work" in order to promote autonomous learning, committed and adapted to the new requirements of 21^st-century companies. Within this context, we present the theoretical environment on which the work developed on the ACME IT platform is based, which brings together collective work and blended learning. We also provide a detailed description of some examples of wikis, the paradigm of collaborative work, prepared in subjects taught at the University of Girona in the ACME virtual environment.