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Covers a variety of topics including music, sports, health, love and romance, and more.
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Free help for first-time inventors about how to go from idea to patenting, marketing and licensing.
Thousands of experts answer technical questions, which are posted on site by subject area.
News, expert articles on competitive intelligence and research and an enormous research web guide - thousands of the most valuable research sites, hand picked.
Physics homework help, tutorials, solved problem sets are provided to university, college, and secondary school students.
Collaborative reference service from the Library of Congress and OCLC.
United Kingdom based question and answer site with weather, crosswords, quizzes and horoscopes.