It is widely recognized that peer interaction is valuable for improving learning and achievement. This article proposes a three-dimensional context-awareness (CA) model to help learners in distributed e-learning settings to find suitable peers for potential collaboration. Based on the recognition of the e-learning context that involves the "Knowledge Context," "Social Context" and "Technical Context," this article proposes a three-dimensional CA model for peer recommendation, including "CA to Knowledge Relevance," "CA to Social Proximity," and "CA to Technical Access." A case study is designed to examine learners' perceptions toward the CA model, demonstrating that the CA model can be acknowledged by the learners. Finally, this article discusses the general value (more than only being applied in peer recommendation) of the CA model. (Contains 5 figures and 1 table.)