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AbstractE-learning environments can be classified into two categories: those narrowly designed to satisfy specific user requirements, and generic ones designed to be easily customizable and extendible to meet individual tastes and requirements, and new needs. In the first part of this paper, we briefly describe several e-learning environments of both kinds and discuss CVW, an open source product of the second kind designed for commercial users. In the main part of the paper, we outline our current work on retargeting CVW at e-learning. We focus on one aspect of our current work - a minimal-effort extension of CVW to generalize the underlying CVW model and to allow large user populations to use it effectively.