Soil science societies
Australian Society of Soil Science Incorporated
British Society of Soil Science
Canadian Society of Soil Science
Clay Minerals Society
Deutsche Bodenkundliche Gesellschaft
International Union of Soil Sciences
Italian Society of Soil Science
Italian Association of Pedologists
Manitoba Soil Science Society
National Society of Consulting Soil Scientists
New Zealand Society of Soil Science
Österreichische Bodenkundliche Gesellschaft
Society of Soil Scientists of Southern New England
Soil & Water Conservation Society
Soil & Crop Science Society of Florida
Soil Science Society of Ireland
Soil Science Society of America
Soil Science Society of South Africa
Soil Science Society of Turkey
Soil Science Society of Japan
UK Soil Association
Notable online references
Australian Soil Classification
Keys to Soil Taxonomy
Soil Survey Laboratory Method
Other Links
Texture AutoLookup (TAL)
Agriculture models and tools
Malaysia Recycle Net