If you've ever visited the Google home page, then you'll have seen a button right under the search bar titled "I'm Feeling Lucky."
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The "I'm Feeling Lucky" button takes you instantly to the first search result returned for any query. For instance, if I type in "cheese" I go straight to cheese.com, if I type in "Nike" I go straight to the Nike corporate site, etc. It's basically a shortcut so you can bypass the search engine results page.
