http://www.orchidsonline.com.au/ Australian based forum with experienced growers offering hundreds of high quality orchid images catalogued using RHS & Kew protocols.
http://apps.kew.org/wcsp/home.do Kew World Checklist of plants.
http://apps.rhs.org.uk/horticulturaldatabase/orchidregister/orchidregister.asp RHS International Orchid Register
http://www.orchidsaustralia.com Australian Orchid Council
www.sarocinc.com South Australian Regional Orchid Council Inc.
http://www.anos.org.au Australian Native Orchid Society (ANOS)
http://www.oscov.asn.au Orchid Societies Council of Victoria.
http://www.aos.org American Orchid Society
https://www.rhs.org.uk Royal Horticultural Society, London
More Information on Orchids and Culture
http://www.backbulb.com A site by an orchid grower on how to cultivate backbulbs, very informative.
http://orchidsusa.com/1Introduction.htm A comprehensive guide to orchid culture USA based.
http://www.cloudsorchids.com/doctor/diagnose.htm An on line diagnostic site for recognising and correcting problems with orchids.
http://www.orchidculture.com/ A site by Charles and Marg Baker, 2 eminent orchid growers in the USA, providing various culture sheets and other information on orchid species. Marg has since passed away, but the site is still operational.
http://slipperorchids.info/paphprimaries/index.htmlA diagrammatic representation of Primary Paphiopedilum Hybrids.
http://www.orchidspecies.com A photo encyclopaedia of orchid species with cultivation notes.