Kashiwagi Elementary School conducted classes focused on a local community in the "Period for Integrated Study". At the classes, students used the local mailing list, named 'Tama Manabi', run by local citizen as one means which deepens the learning of them. Over four hundred e-mails were exchanged on the mailing list and the e-mails extremely affected the students. Also, through these processes, students were able to tell their approaches of learning to the local people. This paper reports the practical utilization of the mailing list in the classroom. Moreover the role and the outcome of u...