Locate It on the Web
Just as every item in the library has its own call number, every image, file, page or program on the Web has its own individual location. To find these online sources, you need the Web address called a Uniform Resource Locator or URL. The URL identifies the computer, directory and file where an item is located and the type of protocol needed to read that item. Capitalization, punctuation and spacing must be exact for a URL to work.