Tremendous growth of information and communication technology brought crucial changes in the every part of society including education. It has also raised the interest of researchers & educational practitioners who wants to combine its capabilities with the World Wide Web to facilitate the creation of online collaborative virtual environments over last decade. However, these CVEs have been focusing on sharing of events; giving very less attention to the specific services and functionalities it could provide to the traditional e-learning systems. This paper describes the review and analysis of the current efforts that are developing, evaluating or using collaborative virtual environments in education.