This is not to mention the Britannica Classics: articles from Britannica's most famous contributors: from Sigmund Freud and Albert Einstein to Harry Houdini and from Marie Curie Transfer Printing Machine Factory to Orville Wright.The Britannica fully supports serious research. It is a sober assemblage of first-rate essays, up to date bibliographies, and relevant multimedia. It constitutes a desktop university library: thorough, well-researched, comprehensive, trustworthy.The Britannica's 87-125,000 articles (depending on the version) are long and thorough, supported by impressive bibliographies, and written by the best scholars in their respective fields, including 110 Nobel laureates. The company's Editorial Board of Advisors reads like the who's who of the global intellectual and scientific community.The Britannica is an embarrassment of riches. Users often find the wealth and breadth of information daunting and data mining is fast becoming an art form. This is why the Britannica incorporated the \u201cPersonal Brain\u201d to cope with this predicament. But an informal poll I conducted online shows that few know how to deploy it effectively.The Britannica also sports Student and Elementary versions of its venerable flagship product, replete with 23,000 articles, a Homework Helpdesk, "how to" documents, and interactive games, activities, and math and science tutorials. Still, the Britannica is far better geared to tackle the information needs of adults and, even more so, professionals. It provides unequalled coverage of its topics.Ironically, this is precisely why the market positioning of the Britannica's Elementary and Student Encyclopedias is problematic: compared to Wikipedia, the Britannica's brand is distinctly adult and scholarly. The vacuum left by Encarta\u2019s (lamented) discontinuance, though, should make it easier to market the Student and Elementary versions (which are an integral part of the Ultimate Edition and not sold separately).Still, the 2015 editions of both the Student and Elementary encyclopedias improve on the past in terms of both coverage and facilities: the Homework Helpdesk is a collection of useful homework resources including a video subject browse; online learning games and activities; online subject spotlights; and how-to documents on topics such as writing a book review. There are also Learning Games and Activities: hundreds of fun and interactive games and activities to help students with subjects like Math, Science, and Social Studies. Both versions are updated monthly with new online-only articles. There is a Workspace for managing projects and many timelines and tutorials.The current edition is fully integrated with the Internet. Apart from articles about new topics and personalities in the news, it offers additional and timely content and revisions on a dedicated Web site. The digital product includes a staggering number of links (166,808!) to third party content and articles on the Web. The GeoAnalyzer, which compares national statistical data and generates charts and graphs, is now Web-based and greatly enhanced.The Britannica would do well to offer a browser add-on search bar and to integrate with desktop search tools from Google, Microsoft, Yahoo, and others.