The main objective of this study is to find out from which sources university students obtain their information and communication technology (ICT) skills, and the role of informal peer learning in this process. The results of the survey indicate that peer learning is regarded as the most important source for acquiring ICT skills among the Library and Information Science (LIS) students. Learning with YouTube, manuals, and handbooks was rated next most important, leaving the formal ICT courses of the university in third place. This study makes a contribution by introducing a process model of informal peer learning and describing each stage of the process from the triggers to the effects. The study also reveals the advantages of informal peer learning over other learning sources. Based on the findings, recommendations are made to LIS schools to incorporate peer learning into their courses and to university libraries to facilitate students' informal learning activities.