Navigation with Browsers
		Let us emphasize at the start that Web Browsers are for exploring. If you are not sure what a button does, try it and see what happens! As we will discuss in more detail while we go along, you are unlikely to damage anything by pushing buttons on the browser to see what happens, and there are simple ways to recover if you don't like what happens when you push a button. The key to navigation of the World Wide Web with browsers is the Uniform Resource Locator (URL), which gives the address of a document, not only with respect to a local computer, but with respect to the entire Internet.