“This special thematic section of the Journal of Computer-Mediated Communication brings together nine articles that provide a rich composite of the current research in online communities. The articles cover a range of topics, methodologies, theories and practices. Indirectly they all speak to design since they aim to extend our understanding of the field. The variety shown in these articles illustrates how broad the definition is of this rapidly growing field known as ‘online communities.'” (Jenny Preece and Diane Maloney-Krichmar – JCMC 10.4) – courtesy of elearningpost