Division C-5 (Turfgrass) of the Crop Science Society of America
   Member directory with e-mail addresses, list of officers, and annual meeting information. Focuses upon development, evaluation, establishment, and maintenance of turfgrass for multiple uses. Part of the sister societies American Society of Agronomy and So
   http://c5turf.org/

Illinois Turfgrass Foundation
   Nonprofit group dedicated to supporting turfgrass research and education in the state. Includes research, education programs, publications, resources and contacts.
   http://www.illinoisturfgrassfoundation.org

International Turfgrass Society
   Created to encourage research and education in turfgrass science. Group holds conferences every 4 years. Page includes list of officers, newsletter, events and membership information.
   http://www.uoguelph.ca/GTI/itsweb/

Maryland Turfgrass Council
   Organization to connect individuals, public agencies, and organizations to improve turfgrass culture, production, and education in Maryland. News and events, legislative affairs, and publications.
   http://www.mdturfcouncil.org/

The Institute of Groundsmanship
   Membership organisation that represents groundsmen, greenkeepers and all others involved in landscaping, horticulture, sports turf, and amenity turf management. United Kingdom.
   http://www.iog.org/