Other online resources
The Soil Biology Primer. Soil and Water Conservation Society. Tugel AJ, Lewandowski AM, eds. https://web.extension.illinois.edu/soil/SoilBiology/soil_biology_primer.htm
Soil Science Society of America: https://www.soils4teachers.org
Global Soil Biodiversity Initiative (GSBI): https://www.globalsoilbiodiversity.org/
Connect With Nature: https://connectwithnature.ae/