The use of the internet is indispensable in today's businesses. The term Web 2.0 reflects the interaction possibilities of the internet in a globally connected world. While it is already being fully utilized in some areas of business, there are other areas that still have room for improvement. Particularly in human resource management, not all possibilities are being utilized. This book presents the first collected experiences of companies with the use of Web 2.0 tools for employee recruitment and retention. Based on the implementations shown, new ideas for Web 2.0 tools are presented, which not only include combinations with previously used online instruments but also provide inspiration for innovative applications.