Abstract
It had an awareness of the issues whether Social networking service (SNS) could enhance an innovation. Potential of SNS for Innovation is analyzed using my SNS cases. As the result, SNS use to develop networking, and then enhance the open innovation. Also, SNS can get niche and specialized information from global, and it can use the long-tail effect. SNS create field building and dialogue. It was found that SNS expand the knowledge level to global and move into the knowledge creation. Thus, SNS has high potential to enhance the innovation.