Agricultural Measurement Instruments - Site developed by Spectrum Technologies describing environmental monitoring equipment.

Apogee Instruments - Site developed by Apogee Instruments describing their temperature and light sensors.

Ciba Specialty Chemicals - Site developed by Ciba Specialty Chemicals and describes their agricultural production films.

Lights Interaction - Site developed by Lights Interaction in The Netherlands and describes their greenhouse lighting systems.

MEI - Site developed by MEI, a Division of Marcy Enterprises, and describes their ethylene scrubbers and refrigeration systems.

Polysack - Site developed by Polysack in Israel and describes their light and temperature moderating coverings.

Purdue University Floriculture Extension - Developed by Purdue University. Site includes information on many floricultural crops. A comprehensive linkage site.

Vostermans Companies - Site developed by Vostermans Companies in The Netherlands and describes their greenhouse ventilation system.