 Study hypotheses: 1 Delivery of modules over 10 weeks will lead to better educational outcomes than delivery of modules at one time. 2 The method of module delivery that directly lists the modules in an email will be associated with greater improvements in knowledge, confidence, and communication skills and greater satisfaction with the overall curriculum than methods that involve the delivery of only links to the modules in an email. 3 Active participation in a moderated mailing list will enhance outcomes and satisfaction with the curriculum more than non-participation or passive participation reading the messages of others. 4 More positive attitudes toward the use of and greater use of computer and Internet technologies at baseline will be associated with more active participation in the mailing list; greater use of the modules delivered through links; greater improvements in knowledge, confidence, and communication; and more positive attitudes about the curriculum following participation in the study. 