Intergeo (http://inter2geo.eu/) is an eContent+ European project dedicated to the sharing of interactive geometry constructions. It will enable teachers and pupils all over Europe to participate from experiences made by pioneers in the field of interactive geometry as a tool for teaching, learning, and research. Educational contents that were hard to access are made available in a common interoperable format. Tagged with relevant topics and competency based metadata and categorised according to curricula, they will be searchable and easily (re­)usable by everyone. It will impact the value chain in e­Learning, by providing building blocks of quality controlled, semantically enriched interactive educational content, on all levels from K­12 to university, for classrooms, on­line courses, or integrated digital education systems. This project will help a multicultural community, built around interoperable quality controlled e­Learning standards, to emerge and sustain itself with a wider audience than the present days niche of dedicated experts, which would not happen by market forces alone.