Factors influencing students' use of a library Web portal: Applying course-integrated information literacy instruction as an intervention

• An information literacy course improves students' views of a library's Web portal.
• An information literacy course promotes continued use of a library's Web portal.
• Competing resources negatively relates to students' use of the library's portal.
• Students' portal use following course instruction leads to continued satisfaction.
• Continued satisfaction with the library's web portal leads to continued use.

This longitudinal study investigates factors influencing undergraduates' prior, current, and continued use of a university library Web portal using a credit-bearing course infused with information literacy (IL) components as an intervention. Applying a mixed methods approach and using the technology acceptance and information systems success models as theoretical foundations, the authors examined direct influences of user satisfaction, voluntariness, and competing resources on portal usage, as well as relationships among current use, user satisfaction, and continued use. The results indicated that the positive effect of user satisfaction on use increased and the unfavorable impact of voluntariness of use became non-significant after the intervention. Yet, the significant negative impact of competing resources on portal use remained unchanged. Additionally, current use had a significant positive relationship with user satisfaction which led to continued use. The outcomes signify that integrating IL components into credit courses could be a strategy to facilitate library portal use.