GEOSET (Global Educational Outreach for Science, Engineering and Technology) is a freely accessible, searchable internet gateway to a selection of SET and related educational materials. Most of the videos take the form of ‘concept modules’ - rather than whole lectures or courses - focused on specific topics, in the form of split-screen presentations, in which the video of the presenter is in one window and the educational material synchronised and presented in a second window. GEOSET also links to other major sources of educational material such as at the Vega archive site and the Royal Society. Users can filter by age suitability, type of video, and subject.