This document discusses wikis and their use in education. It defines wikis as collaboratively edited websites that allow any user to freely edit pages. Wikis do not require specialized software to edit and prioritize the last draft, with version history available. The document provides examples of how teachers can use wikis to facilitate writing, discussion, and collaboration among students on topics, projects and resources. It notes some potential obstacles to wikis, such as conflicting with assumptions of authorship and intellectual property, or students being uncomfortable with public writing or intimidated by the technology.