An example of the keyword index is AltaVista . Here you type a word or words and the system will return a list of documents which match. Both systems have advantages and disadvantages. The thing to remember with both is to be as specific as you can and bookmark or remember sites which you find useful. A URL URL stands for Universal Resource Locator and it is the strange looking string of charcters in the Location line just below the icons at the top of the page.
All countries have a code except the United States.
With this bit of information, you can actually try going directly to many company or government pages without using an index. It may not always be this easy, but you might like to try. There are a number of books which can help you, but remember, the Internet is not a neat and tidy place. Ask the staff to help if you have problems.