This document discusses wikis and their use in education. It defines wikis as free, collaborative websites that allow users to easily add and edit content without HTML knowledge. Wikis encourage sharing information and ideas. Characteristics include being web-based, allowing data sharing, and promoting social tools for creating, collaborating and exchanging information. Benefits of wikis in education include promoting collaboration, providing opportunities for reading and writing, and motivating participation. Examples of wikis like Wikipedia, Wikispaces, and WikiTravel are provided.