Inclusion Criteria:  Applicants had to be:  entering 10th, 11th, or 12th grades; able to attend an annual mandatory overnight retreat; interested in providing accurate sexual health information to peers; able to commit to weekly meetings; able to miss school occasionally for presentations (one day per month); responsible for budgeting their time and keeping up with their academic work.  Exclusion Criteria:  Any interested participant who did not meet all of the inclusion criteria:  was not entering 10th, 11th, or 12th grades; was not able to attend an annual mandatory overnight retreat; was not interested in providing accurate sexual health information to peers; was not able to commit to weekly meetings; was not able to miss school occasionally for presentations (one day per month); (6) was not responsible for budgeting their time and keeping up with their academic work.