Access the Wolfram|Alpha computational knowledge engine:
Answer questions, do math, instantly get facts, create plots, calculators, unit conversions, scientific data and statistics, help with homework-and much more.
Now you can explore the web in an entirely new way by beginning your Google search with an image. Learn more about images on the web and your own photos.
Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites. Google Scholar helps you find relevant work across the world of scholarly research.
There are approximately zillions of specialized search engines out there, as can be seen at Search Engine Guide. The list below is a selective subset of these, chosen because they might help you find materials useful as resources in a WebQuest. All of these links lead to sites that contain specific information that may not turn up when you do a general search of the Web using Altavista, Yahoo, and other search engines and directories. For a more comprehensive list, you might also want to check the Invisible-Web site.
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