The USDA National Organic Program

Organic Trade Association (OTA)

Appropriate Technology Transfer for Rural Areas (ATTRA)

This site contains a wealth of information on organic agriculture; from pest management to organic seed sources, this site has just about everything you need.

Organic Material Review Institute (OMRI)

OMRI publishes a list of materials that they judge are approved for use on certified organic operations.

Independent Organic Inspectors Association (IOIA) 

International Federation of Organic Agricultural   Movements (IFOAM)

Organic Farming Research Foundation 

Carolina Farm Stewardship Association(CFSA)

CFSA is the source for educational information on organic agriculture in the Carolinas.

Certify Organic

Organic Farming Systems (NCSU)

Organic Consumers Association

Organic Farm Network

Organic Ag Info

Organic Alliance

Willing Workers for Organic Farms