American Orchid Society
Eastern Orchid Congress, Inc.

Florida-Caribbean Orchid Association, Inc.

North American Native Orchid Alliance

Northwest Orchid Society

Cymbidium Society of America, Inc.

International Phalaenopsis Alliance

The Laeliinae Specialist Page

Maxillaria Tribe

The Neofinetia Web 富貴蘭

Native Orchids of the United States

Orchids of the Pleurothalid Alliance

The Sobralia Pages

Southland Orchid Show Committee

The Stanhopea Pages