Co-browsing is a synchronous class of collaborative applications, which allows a group of users to surf the Web together. Such an application can be deployed in an education environment in several ways. One example of where it can be used would be in courses that are project-oriented. Students would be required to collectively research or explore information on the Web. This paper describes CoBrowser, a prototype co-browsing system that supports multiple groups, CoPointer, and chat sessions. In the past, co-browsing architecture has been based on either a proxy server or has required a special plug-in for the Web browser. The proxy server based approach is complex and is not scalable. The proposed CoBrowser addresses both of these limitations and works on any platform that supports a graphical Web browser with Java capability. Users of the system may potentially be geographically separated and working on different platforms. The system has been extensively tested for single and multiple groups and is available for demonstration from a server run at Old Dominion University (Virginia). (AEF)