Internet provides a new communication space without space and time barriers.
The success of Internet results to a great extent from its ability to enable and foster new social forms of interaction. One new social phenomenon emerging on Internet are online communities. They are considered a critical success factor and an important value driver in electronic commerce as well as an efficient organizational form for knowledge sharing. We are witnessing many attempts to build and initiate online communities in different areas of interest and as part of electronic commerce solutions. Developers, investors, moderators, and researchers are still looking for methods for efficient development of online communities.