International Virtual Observatory Aliance : “a worldwide facility which will link the archives of the world’s major astronomical observatories into one distributed database”. Members:- India, Italy, Spain, Russia, France, USA, Korea, Japan, Hungary, Germany, Europe, Canada, China, Brazil, Australia, United Kingdom, Armenia
The Australian Virtual Observatory(Aus-VO) “provides a distributed, uniform interface to the data archives of Australia’s major astronomical observatories, and to archives of astrophysical simulations.“