Increasingly, researchers and educators are making efforts to enhance children's learning by providing them with access to a variety of educational and recreational activities outside of school. Examples of such efforts are the 'University/Community-Links' After-School Programs (UC-Links, often referred to as the 'Fifth Dimension'), initiated at UC San Diego by Michael Cole and Olga Vasquez in 1996. In these after-school programs, which have been expanded across the United States and to other countries, undergraduates engage with low-income/minority children in various after-school activities, many of them computer related. This chapter examines research on the interactions between undergraduate university students and students in these after school programs. (PsycINFO Database Record (c) 2016 APA, all rights reserved)