In this paper, we develop the activation support system in group communication, and report the evaluation results during the operation with four months. As the communication support system by means of internet technology, the Bulletin Board System (BBS), net news system, chatting, mailing list and so on are well known. However, in these system, we have no resources to know who gets informations and which informations each user gets. These problems prevent important informations from spreading all over the members. In this paper, we focus on the e-mail resource on mobile phone. Thus, we develop the news system by means of WEB technology (WEBNEWS). The system has functions similar to the net news system. In addition, the system has the e-mail function to the mobile phone, that is, the system requests that the members, who did not access the important content, should read it through the e-mail. From the evaluation experiments by comparing with the conventional net news system, finally, we success to show that the system is effective in communication efficiency and user accessibility.
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