The proliferation of information in electronic format does not guarantee its accessibility. The fact that many Web sites are not accessible to large segments of the disabled community has created a digital divide. Web accessibility is especially important in University communities, since the Internet and the digitization of information have…

There is little doubt that the advent of collaborative technologies in recent years has brought some significant changes in the way students learn, communicate, and interact with one another. In recent years, this emergence has sparked increased interest for research into the role and impact of instructional technologies on group learning. Despite…