Forty volunteers were recruited and were e-mailed one case every 2 weeks; 34 completed the study. Each case was followed by further postings and, at the end of 2 weeks, by a summary of the group's discussion. Background material for each case was researched and was evidence-based. Evaluation was conducted using preintervention and postintervention mailed surveys combined with an e-mail feedback questionnaire and a modified focus group.