Web 2.0 is currently an omnipresent phenomenon. No current online platform can do without aspects of user participation, tagging, or dynamically generated real-time content. In contrast, the semantic web is primarily known in specialized circles and is considered technical and unobtrusive compared to its trendy Web 2.0 counterparts. This is both a strength and a weakness of the semantic web, as it is often seen as too cumbersome and complex for use in businesses and acceptance by employees. This book dispels the prejudices: the semantic web is ready for use and capable of flexibly assisting users in their daily work with decentralized elements. Current technological developments can support this. Decentralized concepts with strong Web 2.0 influences have moved beyond the experimental stage and are waiting.