Organization is the same as arranging or classifying things in to folders or another source of keeping thinks in neat order. That is the basic of organization. Organization is important in web design because it helps you keep you work very neat and easy to read, the purpose of organization in web design is so that you can easily locate your work when you go to the folder you can easily find your mistake and what is the cause of that mistake if you have a well organized folder.

If you have a well organized folder in web design class or when making a website it makes it a whole lot easier. So you don't end up having a link break, most link beak are caused because people don't know where they are having problem and it is very difficulty to make that observation when you have your work all over the place. May be you are missing a file to finish.