Updated December 12th, 2015.
You can do a Google search without going to Google first. In Safari, look for the search area at the top right of the screen.
Type in what you’re looking for, hit Enter (or Return) on the keyboard, and there you are, a page full of search results. Sure, you can go to www.google.com and do the search there, but why bother?
Bonus Tip: there’s a tiny triangle pointing down at the far left of Safari’s search area. Click it and you’ll see the last ten things you searched for. Choose something from that list and you’ll do the search again. There’s also a “Clear Recent Searches…” option, in case you want to cover your tracks.
Double-Bonus Tip: try holding the Control key down and clicking on ANY word on a web page. A little menu appears, and one of the options is “Search in Google.” Which means that you can do a Google search without typing anything! Incredible.