This document provides an overview of wikis and how they can be used in educational settings. It begins with defining wikis as websites that allow collaborative editing by multiple users with no specialized technical skills. Several benefits of wikis for differentiating instruction are outlined, such as their ease of use, accessibility, and ability to engage diverse learning styles. Examples are given of how wikis can be incorporated into classrooms for projects, group work, portfolios, and peer review. Suggestions are also made for teacher collaboration through wikis. The document concludes by listing examples of wikis in different subject areas and providing references for further information.