European
Virtual Observatory – Euro-VO
Australian Virtual Observatory – Aus-VO
Brazilian Virtual Observatory – BRAVO
Canadian Virtual
Observatory – CVO
Chinese Virtual Observatory –
China-VO
French Virtual Observatory – VO-France
German Astrophysical Virtual Observatory –
GAVO
Hungarian Virtual Observatory – HVO
Indian Virtual Observatory – VO-India
Italian
Virtual Observatory – IVO
Japanese Virtual Observatory – JVO
Korean
Virtual Observatory – VO-Korea
Russian Virtual Observatory – RVO
Spanish Virtual Observatory – SVO
UK Virtual Observatory - AstroGrid
US National Virtual
Observatory – NVO
Optical Infrared Co-ordination Network –
OPTICON
Wide-Field Plate Data Base – WFPDB
Preservation and Digitization of
Photographic Plates – PDPP