It is a living collaboration whose purpose is the sharing of the creative process and product by many.

In K-12 education, wikis are being used by educators to conduct or follow-up after professional development workshops or as a communication tool with parents. The greatest potential, however, lies in student participation in the ongoing creation and evolution of the wiki.
Tons of ideas for how to use wikis
Creating an organizational structure for the content is an important part if the project.