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"Anyone, in theory, can publish on the Web; therefore, it is imperative for users of the Web to develop a critical eye to evaluate the credibility of Internet information. Searching for sources on the WWW involves using a search engine, a directory, or some combination of these two. Because there is so much information on the Web, good and bad, finding what you want is not an exact science and can be time consuming."

"the kit, Sagan argues, isn't merely a tool of science - rather, it contains invaluable tools of healthy skepticism that apply just as elegantly, and just as necessarily, to everyday life. By adopting the kit, we can all shield ourselves against clueless guile and deliberate manipulation."