Abstract
There is a "mixi" that is the most popular SNS in Japan. I tried the student's management by using it in a class. The teacher establishes the community in mixi, and reports with the student. This method doesn't cost the charge, safe security, and no maintenance. In addition, it is not necessary to explain how to use it for students. It questioned at the end of the class, and the indicator in the future was obtained. The feature in this method was not obtained, using with other methods together in the future.