Introduction to this Volume
The growth of virtual communities and their continuous impact on social, economic and technological structures of societies has attracted a great deal of interest among researchers, practitioners, system designers and policy makers. All interested in analysing and understanding how these communities form, develop, nurture social interaction, influence various technological design and implementation, enhance information and knowledge sharing, support business and act as catalytic environments to support human learning. This Chapter provides a general overview of virtual communities and introduces the reader to the various themes covered in this volume as well as the geographical distribution and institutional affiliations of contributors to the volume.