The use of Web 2.0 techniques and corresponding tools holds great potential for a company. The goal of this book is to highlight and make use of this potential. After an introduction to the topic, the most important types of software and their application areas in the business environment are presented. The descriptions are illustrated with examples and action guides. Case studies from 15 organizations help the reader gain an overview or find inspiration on how to support specific scenarios, such as teamwork or information management, within the company. After a detailed discussion of the main challenges in using social software, the book concludes with a discussion of new concepts such as the Semantic Web, virtual worlds, and ubiquitous user interfaces.