This document provides an overview of wikis, describing them as a new form of Google that allows for searching answers and creating blogs. It outlines how to start a free trial wiki by setting up an account, which provides two hosted wiki spaces with 25MB storage each that can include up to 5 members. Wikis offer features like page history and multiple languages as well as a calendar for adding and sharing events. Workspaces can be private, public, or tailored individually and are useful for projects, blogs, databases, or entire departments.