抄録
Considering mode and popularization on the web2.0, it makes no sense to increase stock of information. It's absolutely essential that it is not "you know in your mind", but "you are sentient". Use the analogy of that process to need the c to c communication in e-community in four levels by NECA model. With a background like that, this theory is developed as follows. First of all, this theory is focus on the c to c communication distributed fan digital contents easily as typical Japanese media "nico nico douga" and blog deployed on e-community. Secondly, that type of digital contents, you also see watching a lot of fanvid, user-generated video as playing fan game, and making comments about that user-posted video. Finally, this theory considers how e-community is created.
