| Agroclimatic Atlas of Ireland: Map of the soil great groups, based on the Soil Map of Ireland, 1980. |
| Are Laterites Caused by the Alkaline Gut of Termites?: It is proposed that latisols (ultisols) are caused by the extremely alkaline midgut of humus eating termites. |
| Bulk Density Determination: Detailed description to determine the bulk density of soil. |
| Canadian Soil Classification: A taxonomy of soils. |
| Canadian Soil Information System: Information on soil surveys and analysis but also on the Environmental Sustainablility of Canadian Agriculture. |
| Dedcoastland: The Mediterranean scientific network research on soil degradation and conservation, land use, desertification and erosion. |
| Distribution Maps of Dominant Soil Orders: Maps showing U.S. land area in different soil orders. |
| Global Soil Regions: Map showing world wide distribution of soil types. |
| Lang Penetrometer: Description and usage information for this soil compaction meter. |
| Major Soils of Tuapaka Farm, New Zealand: Information, soil characterization and description and soil use. From Massey University. Photos. |
| NRCS Soil Survey: Lists soil surveys, survey programs, soil survey technology, standards, data and references. |
| NRCS Soils Gallery: Contains representative pictures of soil orders plus profile and landscape pictures of more specific soils. |
| Soil Map of Italy: An ongoing project to develop a updated soil map. |
| Soil Micromorphology Links: Micromorphology is the branch of soil science that is concerned with the description, interpretation and the measurement of components, features and fabrics in soils at a microscopic level. |
| Soil profiles of Europe: Pictures and descriptions of commen soil types found in Central Europe. |
| Soil Resource Database for Saskatchewan: This database provides information on physical and chemical attributes of the soil, landscape characteristics, and interpretive data. |
| Soil Survey Information for Massachusetts and New England: Featuring soil information, ground penetrating radar, GIS, and soil profile photos. |
| Soil Survey of the State of Hawaii: Soil maps and details for all Hawaiian islands. |
| Soil Survey Photography: Principles and Techniques is a presentation on Soil Survey photography. [PowerPoint Presentation] |
| Soil surveys of Ontario: Canada. List of surveys and maps. |
| Soils Data Mart: Data and other resources on soils, soil taxonomy, and U.S. soil surveys. |
| Soils of Canada: A collection of soil profiles representing the twenty Great Groups in the Canadian System of Soil Classification. Includes descriptions of soils and plants of Sub-Boreal Spruce Zone and the Engelmann Spruce-Subalpine Fir Biogeoclimatic Zone. Many pictures. |
| Soils of Canada: Online maps. |
| Soils of Israel: A set of images to illustrate the soils of the arid part of Israel. Includes a description list of the soil groups in English and Hebrew. Also available is a conversion table from Dan's to both the USDA and FAO classification systems. |
| Soils of New Brunswick: Canada. Soil surveys and maps from CanSIS. |
| Swedish National Survey of Forest Soils and Vegetation: A long term inventory of permanent sample plots of the Swedish National Forest. Short english summary, the details are in Swedish. |
| Texture AutoLookup: TAL is a group of programs to determine soil texture classes based on major soil classification schemes (USDA, UK, Canada, International and others). |
| The Australian Soil Classification: Explains classification schemes in general. Detailed description of australian soil types with glossary and references. Based on a book by the CSIRO. |
| The Soils of Pennsylvania: Maps and description. |
| The Twelve Soil Orders: This system for classifying soils is one of the most widely used soil classification systems in the world. Collection of information and images to illustrate the distribution, properties, ecological significance, and use of these 12 soil orders. |
| Washington State Soils: Interactive maps and pictures. |
| World Soil Resources: Links to data and information about global soils. |
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