This document discusses the shift from a "Web of Documents" to a "Web of Creativity" enabled by social media. It provides examples of massively collaborative creation on sites like Wikipedia and NicoNicoDouga. A case study analyzes the social network of creators who make content related to Hatsune Miku on NicoNicoDouga. The analysis finds different types of creators who interact in a large, decentralized network to spur new creative works. The conclusion is that this model of massively collaborative creation represents a new style that fully leverages the "Community Web" of information and communication activities.