ABSTRACT
In this chapter, we consider the next stage in multimedia metadata: multimedia content within Web 2.0 environments where users will both model and share multimedia content metadata collaboratively, which we refer to as Multimedia Metadata 2.0 (MM 2.0). Creating metadata is a time-consuming process when undertaken
by a single individual. However, eff ort can be greatly reduced by harnessing the power of Web communities to create, update, and maintain content models for multimedia resources. Services based on wikis, which allow the pages of a Web site to be modifi ed by anyone at any time, have proven that global communities of users are not only able to work together eff ectively to create detailed, useful content, even minutiae, for the benefi t of others, but do so voluntarily and without solicitation (Bryant, Forte, and Bruckman 2005).
