I-CLEEN, a project led by the Museum of Science of Trento (Italy), has developed and currently manages an information gateway of Earth system science educational resources. The aim of the project is to support Italian science teachers in setting up Earth science student-centred lessons. To do so effectively, the gateway exhibits the following key features: it adopts a bottom – up approach to resource development that relies on strong cooperation between science teachers and professional researchers (who also act as resource referees); it is subject–oriented and enhances the multi- and interdisciplinary traits that characterize geosciences; it embraces the concept of open source, through the technological tools (LifeRay) used and copyright policies adopted. A service usability study was performed after the first launch of the gateway and the results were used to develop the second release, which is currently online. During the preliminary phase of the project, as well as the development and set-up of the gateway, valuable insight was gained in various different fields: On the current situation in geoscience education in Italy – where teachers are encouraged to take up a student-centred approach, experiential education and learning initiatives, but currently opt for academic teaching methods because they lack the support and the tools needed. On the educational resource gateways currently available online, on the materials they provide and on the role of ICT in Earth science education. On the results achieved and the tools developed during previous science communication activities that involved teachers and students in research projects.