In collaboration with the Publications Division of the American Chemical Society (ACS), students and faculty at 24 primarily undergraduate institutions were provided online access to ACS primary research journals for a period of 18 months, and a group of eight schools were granted access to use the archives of ACS journals for a year. Resources were used in the context of ongoing curricular offerings. Electronic usage data were reviewed for patterns of access and utility, and faculty and librarians were surveyed concerning the effect of online journal access on their education programs. (Contains 2 figures and 3 notes.)