Background: Wikis may give clinician communities the opportunity to build knowledge relevant to their practice. The only previous study reviewing a set of health-related wikis, without specification of purpose or audience, globally showed a poor reliability.
Objective: Our aim was to review medical wiki websites dedicated to clinical practices.
Background: The dramatic growth of Web 2.0 technologies and online social networks offers immense potential for the delivery of health behavior change campaigns. However, it is currently unclear how online social networks may best be harnessed to achieve health behavior change.
Objective: The intent of the study was to systematically review the current level of evidence regarding the effectiveness of online social network health behavior interventions.