- American Farmland Trust
- Alternative Farming Systems Information Center, National Ag Library.
- Appropriate Technology Transfer for Rural Areas, (ATTRA).
- Center for Applied Rural Innovation, (CARI), University of Nebraska.
- Center for Integrated Agricultural Systems, University of Wisconsin.
- Center for Rural Affairs, Nebraska.
- Minnesota Grown Opportunities
- Missouri Alternatives Center
- National Agri-Marketing Association
- National Center for Appropriate Technology, Montana.
- Organic Farming Research Foundation
- Small Farm Center, University of California – Davis.
- USDA Agencies, Services and Programs
- USDA Cooperative State Research, Education and Extension Service, (CSREES)
- USDA Small Farm Program
Links checked February 2016.