This document discusses the uses of wikis in education, business, and social settings. It provides examples of how wikis have been used for collaborative writing projects in language courses, sharing ideas and commentary on course materials, and replacing email for workplace collaboration. Wikis allow for easy editing and sharing of content and are well-suited for group writing projects. They can also be used to keep documents and information up-to-date in a central online location. Successful wiki implementation requires having a clear purpose, getting users on board with agreed-upon usage guidelines, and persisting with the new format even if some users initially find it inconvenient.