

Web annotation and bookmarking tool for research and collaboration
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Diigo is a web-based application that allows users to annotate, highlight, and organize online content, as well as share and collaborate with others. It provides features such as bookmarks, tags, personal libraries, highlights, sticky notes, and outliners to facilitate research and knowledge sharing. Diigo supports various file formats, including PDFs, and enables users to store their annotated web pages for future reference.
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