International Herbage Seed Group
American Seed Trade Association
Oregon Seed Council
Pacific Seed Association
Oregon Seed Association
Grass Seed Cropping Systems for a Sustainable Agriculture
University of Idaho - Kentucky bluegrass seed production
Oregon Agricultural Information Network (OAIN)
Oregon Seed Certification Service
OSU Seed Laboratory
Oregon Clover Commission
Willamette Valley Field Crops
Seed Related Sites
Oregon Agricultural Statistics Service (OASS)
National Seed Storage Laboratory (NSSL)