Arditti, Joseph
Irvine, CA - Various Technical and Non-technical subjects

Aybar, Manuel (Manny)
Garland, TX - Various - see webpage for details

Barkalow, Ray (First Rays Orchids)
Buckingham, PA - Semi-Hydroponic Culture

Blackmore, Sue
Fort Lauderdale, FL - Warm growing miniature orchids

Brasch, James D. (Plant Hormones Canada )
Burlington, Canada - Conservation and Orchid Propagation with Plant Regulators/Hormones

Bussey, Weyman (Abunda Flora)
Mission, TX - MANY TOPICS related to Mexican species, Conservation, Tropical Cymbidium (my own line!), Mexican Vanilla.

Cash, Hadley (Marriott Orchids)
North Carolina - Complex Paphs and Pink/White Breeding

Clarke, Fred (Sunset Valley Orchids)
California - Cycnoches, Mormodes, Catasetums, Paphs, Catts, Culture & More!

D'Alessandro, Dennis (Gypsy Glen Orchids)
Pennsylvania - Orchids of Ecuador and Bolivia, Borneo and Indonesia, The New Paphiopedilums of Vietnam

Decker, Glen (Piping Rock Orchids)
New York - Phragmipediums, "Phragmipedium kovachii - A Peruvian Jungle Adventure"

Gemeinhart, Ernie (EnLightened Orchids)
Aurora, IL - Paphs, Growing Under Lights, Record Keeping

Ginsberg, Howard (Bedford Orchids)
Montreal, Quebec, Canada - Phal Breeding, Red & Novelty, Mini-catts!

Glicenstein, Leon (Hoosier Orchids)
Indianapolis, IN - Various orchd related lectures

Goldner, William (Woodstream Orchids)
Huntingtown, MD - Various Topics - Tropical

Hamilton, Jim (Petite Plaisance Orchids)
Valley Ford, CA - Easy to Grow Species, Rare and Unusual Species!

Hatfield, George (Hatfield Orchids)
Ventura, CA - Cymbidium propagation, classification, culture and care

Hersh, Helen (Mount Prospect Orchids)
Brooklyn, NY - Paphs & Phrags, Bulbophylums, Advanced Windowsill Growing

Heshka, Lorne
Winnipeg, MB - Orchids of Thailand; Orchids, Whales & Polar Bears; Orchids of the Prairie Provinces and British Columbia

Hill, William (Orchid Island Orchids)
Vero Beach, Fl - Growing Oncidiinae Intergenerics

Islam, Yassir (Argus Orchids)
Washington, D.C. - Paphs at the Japan Grand Prix, 2001 (More)

Jorg, Brian
Cincinnati, OH - Outdoor Photographer, Public Speaker, Orchid grower, Eco Travel Leader

Lin, Peter T.
Southern California - Minicatts: Miniature Cattleyas of Yesterday and Today; Miniature Orchid Species: Tiny Wonders of the Orchid World

Mathis, William (The Wild Orchid Company)
Doylestown, PA - Gardening with Hardy Terrestrial Orchids

Michel, Erich (Hoosier Orchids)
Indianapolis, IN - Various orchd related lectures

Moskovitz, Larry (Orchidanica)
Oakland, CA - Brazilian Species, Laelias, Orchids in Hawaii, Bizarre Species, NG Dendrobs!

Parsons, Ron
South San Francisco, CA - Various orchid species-related talks.

Rach, Nina M. (Autre Vie Orchids)
Houston, TX - Stanhopeas and Allied Genera; Sobralias!; Orchids of the Gran Sabana; Orchid habitats in eastern & southern Africa; Arachnis; Eulophia; et al.

Riley, Clark T.
Baltimore, MD - Cypripediums, Terrestrials, Taxonomy!

Rhodehamel, William (Hoosier Orchids)
Indianapolis, IN - Various orchd related lectures

Roberts, Wayne (Roberts Flower Supply)
Columbia Station, OH - Potting Materials, Cypripediums & Native American Orchids, Non Lethal Pest And Fungus Control, Growing Under Lights!

Root, Terry (The Orchid Zone)
Salinas, CA - OZ Slippers, Along the Yellow Brick Road

Sotirov, Krum Z.
Watertown, New York - expert on orchids pest and diseases, care for unknown orchids, adaptation period care for newly acquired orchid.

Staal, Gerardus B. (Peninsula Hybrids)
Palo Alto, CA - Pests, Epis, Bulbos, Masdevallias, Odonts, Dendrobes

Storm, Paul (Meke Aloha Orchids)
Sarasota, FL - Schomburgkias, Myrmecophilas, and their Hybrids

Stubbings, John (Clown Alley Orchids)
Pasedena, TX - Orchid Growing, Phalenopsis, Unusual Relatives of Cymbidiums

Turkel, Marni (Stony Point Ceramic Design)
Santa Rosa, CA. Lesser Known Oncidiinae; Looking for Orchids in Peru, More!

Whitlow, Carson E. (Cyp. Haven)
Adel, IA - Cypripediums, Calopogons, Blue Cattleya History, More!

Wilhelm, Rolf & Linda (Woodland Orchids)
Charlotte, NC - Oncidum Intergenerics, Mexican Adventure, More!

Woodson, Dotty, Ed. D (D & B Orchids)
Fort Worth, TX - Presentations, Demonstrations and Workshops