Since its beginnings in the early 1990s, the web has developed dynamically. Initially, one had to possess profound IT knowledge to participate, but today the web has become a medium of everyday life that no longer requires special skills. In recent years, this has coincided with a renaissance of knowledge management, which was heavily promoted in the 1990s but ultimately failed. The focus today is no longer on a technological approach, but rather on the understanding that knowledge is not only primarily generated in the minds of people or employees, but is also stored there and communicated to third parties by them. Therefore, knowledge management is less a matter of technology and more a question of functioning knowledge communities, commonly referred to as knowledge communities.