This paper shows that industrial organization of content industries have successive pattern of evolution and considerations for CGM in internet from the view of this evolutionlly pattern. The pattern has 3 stages. First, hardware makers which invent new technologies to be used as media find content and start up distribution of content and sell hardwares. Second, start to puroduce new content for the media, and vertically integrate content producing rayer and distribution rayer and intermediate rayer. Thrid, each rayer is separated. The CGM in internet are located on first stage.
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