Previous studies argued that high school resources play a modest role in students' postsecondary destinations, but they ignored schools' programmatic resources, which provide opportunities for marks of distinction, such as Advanced Placement courses, and they focused on older cohorts of high school students who entered colleges before competition over admission to selective colleges intensified in the 1980s. Analyses of data on a cohort of students who entered college in the mid-2000s suggest that programmatic and non-programmatic resources found in high schools influence postsecondary destinations and mediates the effect of family socioeconomic status on choices among 4-year colleges. (Contains 4 tables, 5 figures, and 10 footnotes.)