Organic Farmers Markets
Organic farmers markets are a great place to shop for locally grown organic food. In many cases they are not true farmers markets in that farmers are not always the people standing behind the stalls. If it is not the farmer, at least there is usually only one middle person between you and the producer. Reducing the middle person means that farmers are 
going to receive 80-90% of the food dollar instead of the meagre 8-10% through conventional marketing mechanisms. Ideally farmers markets provide the opportunity for us the consumers, to meet and talk directly with the producers of the food we are buying. This direct connection is important to our sense of connection to food and place, and is one of the basic tenets of the slow movement or slow food.
Farmers markets also provide a great opportunity for farmers to get to know what their customers want and need to know about the food they are buying. Farmers markets are usually centrally located and as a result both farmers and consumers, spend less on transport.
Farmers markets don't just deliver food. They provide a sense of community. Because the marketplace is within the community you will be seeing locals - and seeing them regularly. This provides a wonderful opportunity to 'catch up' and slow down. 
Markets also provide a great place to meet new people in your local area. Many organic farmers markets now include organic food and drink outlets and the opportunity to sit and while the time away in a social environment.
Unfortunately, farmers markets are not likely to change the way the majority of farmers do their business. Markets (and farmers that supply them) are at risk because they are no answer for bulk commodities, nor will they substitute for contract sales to manufacturers and retailers.
Shopping at farmers markets allows you to be reasonably sure of where the food was grown. If it is certified organic this will be advertised - if it isn't certified, but is claimed to be organic, you have the opportunity of finding out just what is meant by the claim eg no sprays, no insecticide, or every criteria met but not the seeds or seedlings.