I had never known that google, as the most familial searching engine, contains such big knowledge until given the lecture about google use by Dan Ream this afternoon. From the basic techniques like the quotation marks to specialized tools such as Gmaps Pedometer, every click is designed to contribute to a easier search of information. I really admire human intelligence a lot although it's always ignored by us when in front of our eyes. We're told that the new century is dominated by those best informed ones, or in another word, we can say people who are better in charge of the technical tools by our hands will have their superiority established. Knowledge is power--I'm now more and more convinced by the saying.