- BioCycle Magazine
- Composting – Reduce, Reuse, Recycle – US EPA
- Composting and Recycling Associations
- Dig It! The Secrets of Soil
- Find A Composter
- GHG Emissions from Compost Facilities – Australia
- Marin Carbon Project
- Mulch and Soil Council
- Soil Biology
- Soil Health – Penn State
- Soil Health- Organic Trade Association
- Soils & Compost: ATTRA – National Sustainable Agriculture Information Service
- US Composting Council – Resources