Abstract
Along with inexpensive broadband environment that has been widely used by consumers, B to C (Business to Consumer) transaction is expanding. The problem that revitalizes rural economy has been getting more important today. As the internet eases geographical disadvantages, B to C is sometime useful for rural revitalization. At that time, B to C often leases rural merchants to tough competition environment. This paper shows some case studies and suggests two methods so that B to C revitalizes rural economy, especially for small and tiny industries. First is about division that specialize the strong field their own. The other is about collaboration among industries. This paper suggests the way rural small merchants or publics sector revitalize rural economy by using EC.