Includes a comparison chart (Diigo, Delicious, Browser) and a high level overview of Diigo (including screenshots). According to Ruffini, Diigo "fosters research-sharing and collaboration in new ways. Not only can students bookmark, organize, and collaborate on various projects and research, but this service gives them - and teachers - the opportunity to organize and manage web resources and documents. Diigo has useful educational applications, as well, such as organizing bookmarks for resources and research, collaborative learning, and professional development."