There are many different types of sustainable agriculture networks, depending on the size, location, focus, and structure of the group. Some networks are formal and organized, with membership fees, rules, and programs. Others are informal and flexible, with voluntary participation, peer-to-peer communication, and self-directed learning. Some networks are local and regional, while others are national and international. Some networks are specific to a certain crop, system, or practice, while others are more diverse and inclusive. To find a network that suits you, you can start by doing some research online, asking other farmers, or contacting your local extension service.