The paper proposes a constructivism approach based on the theory of learning objects, learning profiles and inhabited virtual learning worlds to achieve the goal of adaptive learning in networked learning environments. Given the proposed adaptive learning environments, learners can be uniquely identified and their learning processes can be monitored with their respective learner profiles. Moreover, learning supports could be provided during the process of learning in a scaffolding fashion based on both the data in learner profiles and learning objects database. In additions, an inhabited virtual world can contribute to a real time and immersive communication channel to incorporate collaborative learning pedagogy and build up learning community in the proposed adaptive networked learning environments. In summary, both the learning content and context not only can be personalized but also can be collaborative in the proposed learning environments in an adaptive fashion which is the long-sought paradigm in the field of eLearning.