Armenian Virtual Observatory		http://www.aras.am/ArVO/arvo.htm
Virtual Observatory United Kingdom		http://www.astrogrid.org/
Australian Virtual Observatory		http://www.aus-vo.org/
Chinese Virtual Observatory		http://www.china-vo.org
Canadian Virtual Observatory		http://services.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/cvo/
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/
Korean Virtual Observatory		http://kvo.kasi.re.kr/
National Virtual Observatory, United States		http://www.us-vo.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/