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earch engines, index less than 1% of the Web

information in the deep Web is of higher quality, that is, less “noise” and more focused. If you are searching for information using only surface Web search engines, you are missing 99% of the content of the Web. Moreover, 95% of the deep Web is free publicly accessible information

The deep Web is not a substitute for surface search engines, but a complement to a complete search approach.

questions that are not answerable with finality in a brief sentence… Their aim is to stimulate thought, to provoke inquiry, and to spark more questions — including thoughtful student questions — not just pat answers” (106).  In order to think in terms of questions, “[i]nstead of thinking of content as something to be covered, consider knowledge and skill as the means of addressing questions central to understanding key issues in your subject” (107)

we are likely to change our minds in response to reflection and experience concerning such questions as we go through life, and changes of mind are not only expected but beneficial” (108).