Organizations

Canadian Soil Information System (CANSIS)

European Soil Portal  (Institute of Environment and Sustainability of the European Commission)

Frequently Asked Questions Regarding Soil Testing, Plant Analysis, and Fertilizers
From the work of Dr. Robert Lippert, Clemson University

International Institute for Aerospace Survey and Earth Sciences
A Compendium of On-Line Soil Survey Information

International Soil Reference and Information Center - ISRIC
Wageningen, The Netherlands

Intute: Science, Engineering and Technology

The Pedosphere and its Dynamics: A Systems Approach to Soil Science
Edmonton, Alberta, Canada

The World Wide Soil Jumpstation
Soil management information for horticulture and agriculture from England