The International Union of Geodesy and Geophysics (IUGG)
http://www.iugg.org/
The International Association of Geodesy (IAG)
http://www.iag-aig.org/
The DTU10 Gravity field (DTU10)
http://www.space.dtu.dk/english/Research/Scientific_data_and_models/Global_Marine_Gravity_Field/
The Earth Gravitational Model 2008 (EGM2008)
http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008/
The European Space Agency (ESA)
http://www.esa.int/ESA
The Gravity Field and Steady-State Ocean Circulation Explorer - GOCE
http://www.esa.int/Our_