We propose a Multi-tier Learning Support Scheme (MTLS) which enables effective and scalable peer support in a collaborative online learning environment to address its inherent problem of being unstructured and undirected. The structure consists of four tiers in descendent order, namely, e-Guru, e-Experts, e-Helpers and e-Learners. At the bottom tier, peer learners help each other with their problems. When issues and problems arise at a lower level that cannot be satisfactorily resolved at that level, the next level is invoked. This project looks into the “when” and “how” of “invoking the next level” as well as pedagogical frameworks for fostering peer learning.