Argentina Virtual Observatory		http://nova.org.ar/
Armenian Virtual Observatory		http://arvo.sci.am
Virtual Observatory United Kingdom		http://www.astrogrid.org/
Australian Virtual Observatory		http://aus-vo.org.au/
Brazilian Virtual Observatory		http://www.lna.br/bravo/
Chinese Virtual Observatory		http://www.china-vo.org
Canadian Virtual Observatory		http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/cvo/
European Space Agency		http://esavo.esac.esa.int/
European Southern Observatory		http://www.eso.org/sci/archive/ESOVO.html
European Virtual Observatory		http://www.euro-vo.org/
German Astrophysical Virtual Observatory		http://www.g-vo.org/
Hungarian Virtual Observatory		http://hvo.elte.hu/en/
Japanese Virtual Observatory		http://jvo.nao.ac.jp/
Virtual Astronomical Observatory, United States		http://www.usvao.org
Observatoire Virtuel France		http://www.france-vo.org/
Russian Virtual Observatory		http://www.inasan.rssi.ru/eng/rvo/
Spanish Virtual Observatory		http://svo.laeff.inta.es/
Italian Virtual Observatory		http://vobs.astro.it
Virtual Observatory India		http://vo.iucaa.ernet.in/%7Evoi/