In an example implementation, a global educational hub provides academic users with collaboration tools to exchange and build on the accumulated knowledge of subjects of interest. Users are provided with a central location to collect, categorize, and rank resources, and store notes and comments related to a particular section of an electronic textbook being studied. Users also can refer to online resources, such as web services, multimedia, website pages, newsgroups, search engine results, RSS, any other current and future external resources, and other user's notes.
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