In the age of the Internet, cyberspace has come to represent the vast world of information, human interactions, electronic connections, images, and sounds that make up today's networked computer systems worldwide. Keeping up with the incredible growth of the Internet is no small challenge, but there are resources available for estimating the numbers of networks and users. Typically, these links are underlined and appear in a color different from the regular text of the page. By clicking on a hyperlink the user is able to be transported to another Web site, or to a different location within the current site. In this way, the Web is an interactive medium of communication because it permits the user to interact with the information appearing on a Web site and often with other computer users as well.
Navigation is a natural part of using the Web, just as steering is basic to driving a car.
To navigate the Web, you must use a Web Browser such as Netscape Navigator or Microsoft Explorer . Domain names are followed by directory names and sometimes also by file names and other extensions such as home.htm or .asp . This alias is used to point to a specific computer within an organization or institution that is used to host web pages. With the erosion of the Soviet Empire in the early 1990s NSA shifted its focus to commercial spying. NSA has a long histor of spying on behalf of US companies.