DFID commissioned Mott MacDonald and The Open University to conduct an evaluation of its support to the dissemination of research online via portals and repositories. The evaluation focussed on three portals and repositories supported by DFID: Eldis, R4D, SciDev.Net. The evaluation comprised three primary methods: 1) market research in the form of a global online questionnaire; 2) three country case studies in Ghana, Tanzania and Nigeria consisting of interviews, contextual inquiry, a diary study and a heuristic evaluation;1 and a 3) a value for money assessment of Eldis and SciDev.Net.