An overview of a representative set of existing ICT research infrastructures is represented in a mind map figure: high performance computing, distributed computing, networking, micro and nano electronics, data, remote instruments and future internet. For each of the infrastructures the following information is provided (by clicking on the logos on the mind map figure below): description, collaboration, budget / funding model / economic sustainability, governance / management, users and interaction model, countries and international collaborations, history and evolution, security, operations. More details are in the following documents: "Summary", "Inventory" and "Selected Cases".