IUSS has been an active member of ICSU for over 20 years. In the last decade we have worked successfully with other GeoUnions (Geologists, Geophysicists, Astronomers, Geographers.) to ensure that 'geo-related' topics are given a good level of exposure within ICSU. To facilitate the appropriate focus on 'geo' areas of science the GeoUnions group has met at least annually. Whilst we regularly exchange newsletters and details of meetings it was agreed to establish a website hosted by ICSU. The website is: http://icsu-geounions.org The responsibility for maintenance of the website is to be taken by the International Union of Geodesy and Geophysics.